Fifty Pence 2021 Anniversary of Decimalisation, Coin from United Kingdom - detailed information

Fifty Pence 2021 Anniversary of Decimalisation, Coin from United Kingdom
CoinFifty Pence 2021 Anniversary of Decimalisation

The British fifty pence (50p) coin - often pronounced fifty pee - is a unit of currency equalling one half of a Pound Sterling. It is a seven-sided coin formed as an equilateral-curve heptagon, or Reuleaux polygon - a curve of constant width, meaning that the diameter is constant across any bisection. This shape, which was revolutionary at the time of its introduction, makes it easily distinguishable from round coins both by feel and by sight, while its constant breadth allows it to roll in vending machines.

The first UK Fifty Pence coin was issued in 1969 with the classic Britannia reverse design by Christopher Ironside, which was superseded in 2008 by the Matthew Dent design for circulation coins.The denomination is also extensively used to issue circulating commemorative coins.

Beginning in 2009, the Royal Mint started issuing 50 pence coins for collectors - such as this one - which are not meant to be released in circulation, so are classified as Non-Circulating Legal Tender (NCLT).

This coin was issued to commemorate the 50th anniversary of Decimalisation in the United Kingdom. Before 15 February 1971, known as Decimal Day, the British pound was made up of 20 shillings, each of which was made up of 12 pence, a total of 240 pence. With decimalisation, the pound kept its old value and name, and the only changes were in relation to the subunits. The shilling was abolished, and the pound was subdivided into 100 "new pence" (abbreviated "p"), each of which was worth 2.4 "old pence" (abbreviated "d").

The Royal Mint says:
"This landmark moment introduced the coins we use today, and was Britain’s biggest peacetime operation. It marks a special anniversary in The Royal Mint’s own 1,100-year history and has been commemorated on a 50p coin. To celebrate this momentous occasion, the Decimal Day 50p coin features the second effigy of Her Majesty The Queen on its obverse - this portrait was created by Arnold Machin RA for decimalisation to mark the transition and help people identify the new coinage. The reverse design was created by Royal Mint employee Dominique Evans. This coin featuring the Queen’s second effigy is only available as part of the annual set."

The coins were issued in the mint sets of the year (base metal in Brilliant Uncirculated and Proof grade, and Proof in precious metals).

No coins of this type were released into circulation.

MintRoyal Mint Mint MarkNo mint mark Total Mintageunknown
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Obverse
United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation - obverse photo

The obverse of the coin shows the crowned and draped young bust of Queen Elizabeth II facing right (her effigy known as the "Second Portrait", by Arnold Machin).

The Queen wears the "Girls of Great Britain and Ireland" diamond tiara, a wedding gift from Queen Mary (Her Majesty's grandmother) in 1947 - which she also has on the Rank-Broadley and the Gottwald portraits.

Around, the monarch's legend and the date of issue: ELIZABETH II D · G · REG · F · D · 2021 50 PENCE. Translated from Latin: Elizabeth the Second, by the Grace of God, Queen, Defender of the Faith, followed by the value and denomination in English and the year.

Obverse Inscription ELIZABETH II D · G · REG · F · D · 2021 50 PENCE
Reverse
United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation - reverse photo

The reverse shows at its centre a small seven-sided form like that of a 50 pence coin, with the inscription on three lines 1971 DECIMAL DAY.

In the background, parts of the designs of British pre-decimal coins; clockwise from top: two shillings (also known as a florin), shilling (English variety), a wren farthing, a brass threepence, a sixpence, a ship-type halfpenny and the figure of Britannia from a penny.

The designer's initials DME (for Dominique Evans) are incuse on the right, on the wren's back.

Value and denomination are on the obverse.

Reverse Inscription 1971 DECIMAL DAY
EdgePlainEdge InscriptionNone
Notes

The coin is not included in the Definitive mint sets, which only feature regular circulating designs.

Fifty Pence 2021 Anniversary of Decimalisation: Known varieties
Variety In mint sets
Images United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / In mint sets - obverse photo United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / In mint sets - reverse photo
Mintage Issued: unknown
Details

Brilliant Uncirculated coins in Royal Mint sets.

In Set 2021 United Kingdom Brilliant Uncirculated Annual Coin Set - The 2021 Collection, mintage unknown
13 coins: £5 Queen's 95th Birthday, £2 Britannia, £2 H.G. Wells, £2 Sir Walter Scott, £1 Nations of the Crown, 50p, 50p Decimal Day, 50p John Logie Baird, 20p, 10p, 5p, 2p, 1p
Variety Proof FDC
Images United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Proof FDC - obverse photo United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Proof FDC - reverse photo
Mintage Issued: unknown
Details

Proof FDC coins in Royal Mint sets.

In Sets The 2021 United Kingdom Proof Coin Set Collector Edition, mintage unknown
13 coins: £5 Queen's 95th Birthday, £2 Britannia, £2 H.G. Wells, £2 Sir Walter Scott, £1 Nations of the Crown, 50p, 50p Decimal Day, 50p John Logie Baird, 20p, 10p, 5p, 2p, 1p, Oblong Proof Medal

The 2021 United Kingdom Premium Proof Coin Set, mintage unknown
13 coins: £5 Queen's 95th Birthday, £2 Britannia, £2 H.G. Wells, £2 Sir Walter Scott, £1 Nations of the Crown, 50p, 50p Decimal Day, 50p John Logie Baird, 20p, 10p, 5p, 2p, 1p, Round Proof Medal
Variety Silver Proof FDC
Images United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Silver Proof FDC - obverse photo United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Silver Proof FDC - reverse photo
Mintage Issued: unknown
Material0.925 Silver
Details

Silver Proof FDC. 27.30 mm, 8.00 g sterling silver.

In black presentation box. Royal Mint Product Code: UK21DDSP. Limited Edition: 6,000. Maximum Coin Mintage: 6,710. Issue price: Price: £57.50.

Also in sets.

In Set The 2021 United Kingdom Silver Proof Coin Set, mintage unknown
13 coins: £5 Queen's 95th Birthday, £2 Britannia, £2 H.G. Wells, £2 Sir Walter Scott, £1 Nations of the Crown, 50p, 50p Decimal Day, 50p John Logie Baird, 20p, 10p, 5p, 2p, 1p
Variety Silver Proof Piedfort
Images United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Silver Proof Piedfort - obverse photo United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Silver Proof Piedfort - reverse photo
Mintage Issued: unknown
Material0.925 Silver
Details

Silver Proof Piedfort; identical to the Silver Proof but double the thickness and weight. 27.30 mm, 16.00 g sterling silver.

In black presentation box. Royal Mint Product Code: UK21DDPF. Limited Edition: 2,500. Maximum Coin Mintage: 2,510. Issue price: Price: £100.00.

Also in sets.

In Set The 2021 United Kingdom Silver Proof Piedfort Coin Set, mintage 300
5 coins: £5 Queen's 95th Birthday, £2 H.G. Wells, £2 Sir Walter Scott, 50p Decimal Day, 50p John Logie Baird
Variety Gold Proof FDC
Images United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Gold Proof FDC - obverse photo United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Gold Proof FDC - reverse photo
Mintage Issued: unknown
Material0.917 Gold
Details

27.30 mm, 15.50 g 22-carat red gold.

In mahogany presentation box. Royal Mint Product Code: UK21DDGP. Limited Edition: 450. Maximum Coin Mintage: 474. Issue price: Price: £1,100.00.

Also in sets.

In Set The 2021 United Kingdom Gold Proof Commemorative Coin Set, mintage 75
5 coins: £5 Queen's 95th Birthday, £2 H.G. Wells, £2 Sir Walter Scott, 50p Decimal Day, 50p John Logie Baird
Variety Gold Proof Piedfort
Images United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Gold Proof Piedfort - obverse photo United Kingdom / Fifty Pence 2021 Anniversary of Decimalisation / Gold Proof Piedfort - reverse photo
Mintage Issued: unknown. Mintage limit: 205
Material0.917 Gold
Details

Gold Proof Piedfort; identical to the Gold Proof but double the thickness and weight. 27.30 mm, 31.00 g sterling silver.

In mahogany presentation box. Royal Mint Product Code: UK21DGPF. Limited Edition: 200. Maximum Coin Mintage: 205. Issue price: Price: £2,175.00.

All (69) coins of type: Fifty Pence (Non-Circulating Legal Tender)
Coin NameMintageEffigyLegend
Fifty Pence 2009 - London 2012 - Athletics 19,751 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 New Pence (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 EEC (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Single Market (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 D-Day (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 EU (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 NHS (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Public Libraries Act (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Suffragettes (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Roger Bannister (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Dictionary (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Victoria Cross - Award (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Victoria Cross - Heroic Acts (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2009 Scouting (NCLT) 1,039 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2009
Fifty Pence 2010 - London 2012 - Cycling (Gold) 1 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2010
Fifty Pence 2012 - London 2012 - Athletics (Gold) 26 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Boxing (Gold) 18 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Canoeing (Gold) 17 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Cycling (Gold) 26 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Equestrian (Gold) 22 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Rowing (Gold) 26 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Sailing (Gold) 17 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Shooting (Gold) 17 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Taekwondo (Gold) 15 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Tennis (Gold) 25 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2012 - London 2012 - Triathlon (Gold) 22 Queen Elizabeth II - Fourth Portrait ELIZABETH · II · D · G REG · F · D · 2012
Fifty Pence 2018 The Snowman (NCLT) 170,705 Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2018 ·
Fifty Pence 2019 Stephen Hawking (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 New Pence (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 Roger Bannister (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · DEI · GRA · REG · FID · DEF · 2019 ·
Fifty Pence 2019 Scouting (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · DEI · GRA · REG · FID · DEF · 2019 ·
Fifty Pence 2019 Kew Gardens (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 Girl Guiding (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · DEI · GRA · REG · FID · DEF · 2019 ·
Fifty Pence 2019 D-Day (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · DEI · GRA · REG · FID · DEF · 2019 ·
Fifty Pence 2019 Victoria Cross - Award (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · DEI · GRA · REG · FID · DEF · 2019 ·
Fifty Pence 2019 Victoria Cross - Heroic Acts (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · DEI · GRA · REG · FID · DEF · 2019 ·
Fifty Pence 2019 Battle of Britain (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 Battle of Hastings (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 Peter Rabbit (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 The Gruffalo (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 The Gruffalo and Mouse (NCLT) unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 The Snowman unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2019 Wallace and Gromit unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2019 ·
Fifty Pence 2020 Team GB unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Megalosaurus unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Iguanodon unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Hylaeosaurus unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Peter Rabbit unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Rosalind Franklin unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Winnie the Pooh unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Winnie the Pooh - Christopher Robin unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Winnie the Pooh - Piglet unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 Diversity unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2020 The Snowman unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2020 ·
Fifty Pence 2021 Anniversary of Decimalisation unknown Queen Elizabeth II - Second Portrait ELIZABETH II D · G · REG · F · D · 2021 50 PENCE
Fifty Pence 2021 John Logie Baird unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Charles Babbage unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Discovery of Insulin unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Temnodontosaurus unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Plesiosaurus unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Dimorphodon unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Team GB unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Winnie the Pooh and Friends unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Winnie the Pooh - Owl unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 Winnie the Pooh - Tigger unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2021 The Snowman unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2021 ·
Fifty Pence 2022 Platinum Jubilee unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2022 ·
Fifty Pence 2022 Platinum Jubilee, Equestrian Portrait unknown Equestrian Portrait of Queen Elizabeth II ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2022 ·
Fifty Pence 2022 Commonwealth Games unknown Queen Elizabeth II - Fifth Portrait ELIZABETH II · D · G · REG · F · D · 50 PENCE · 2022 ·
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Fifty Pence 2021 Anniversary of Decimalisation: Details
CountryUnited Kingdom
CurrencyPound Sterling
Coin TypeFifty Pence (Non-Circulating Legal Tender)
Issued2021
MonarchQueen Elizabeth II
EffigyQueen Elizabeth II - Second Portrait, by Arnold Machin
Face Value50 (x Penny)
Mintageunknown
CurrentYes
MaterialCuproNickel
DesignerDominique Evans
TechnologyMilled (machine-made)
ShapeHeptagon (Seven-sided)
OrientationMedal Alignment (Axis 0)
Size27.300 mm
Thickness1.780 mm
Mass8.000 g
OCC IDDKLM-EMKC-PQRY-ENZB
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Fifty Pence 2021 Anniversary of Decimalisation: Photos
ImageDetails
The 50th Anniversary of Decimal Day 2021 UK 50p Gold Proof Piedfort Coin
Copyright: Royal Mint
Source
The 50th Anniversary of Decimal Day 2021 UK 50p Gold Proof Piedfort Coin
Copyright: Royal Mint
Source
50th Anniversary of Decimalisation Gold Proof 50p Coin
Copyright: Royal Mint
Notes: Gold proof.
Source
50th Anniversary of Decimalisation Gold Proof 50p Coin
Copyright: Royal Mint
Notes: Gold proof.
Source
50th Anniversary of Decimalisation 50p Silver Proof Piedfort
Copyright: Royal Mint
Notes: Silver proof piedfort.
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50th Anniversary of Decimalisation 50p Silver Proof Piedfort
Copyright: Royal Mint
Notes: Silver proof piedfort.
Source
50th Anniversary of Decimalisation Silver Proof 50p Coin
Copyright: Royal Mint
Notes: Silver proof.
Source
50th Anniversary of Decimalisation Silver Proof 50p Coin
Copyright: Royal Mint
Notes: Silver proof.
Source
50th Anniversary of Decimalisation 50p Base Proof Coin
Copyright: Royal Mint
Notes: Proof.
Source
50th Anniversary of Decimalisation 50p Base Proof Coin
Copyright: Royal Mint
Notes: Proof.
Source
50th Anniversary of Decimalisation 50p Brilliant Uncirculated
Copyright: Royal Mint
Source
50th Anniversary of Decimalisation 50p Brilliant Uncirculated
Copyright: Royal Mint
Source