Silver Crown 2018 Computed Tomography, Coin from South Africa - detailed information

Silver Crown 2018 Computed Tomography, Coin from South Africa
CoinSilver Crown 2018 Computed Tomography

South Africa pioneered modern bullion coinage when it first issued the Krugerrand on 3 July 1967 to help market South African gold; it is the first modern bullion coin and is still issued today.

Gradually, the South African Mint started diversifying the range, first by issuing fractional Krugerrands, then by introducing different designs and metals, such as a silver one-ounce (1 oz) format. These include silver 1 oz Krugerrands, the Protea series, the Natura series, as well as one-year types that do not fall into a particular series. Some are made of Sterling silver (92.5%) alloyed with copper, just like the British pre-decimal Crown coins, and some are 99.9% silver. The Sterling versions are overall heavier though, so they also contain exactly one ounce of pure silver or 1oz Absolute Silver Weight (1.000 oz ASW); they are called "Crowns" in the "Crown and Tickey" coin sets in which some of them are issued, and are officially denominated as two, five or ten Rands.

This coin, denominated as Two Rands (R 2) is part of the Crown and Tickey series of South African coins issued with different themes every year by the South African Mint to celebrate South Africa’s history and achievements.

The 2018 South African Inventions theme features Computed Tomography (CT), invented by Allan McLeod Cormack. The CT is an imaging procedure that uses special X-ray equipment to create detailed pictures or scans of areas inside the body. It is also termed computerised tomography and computerised axial tomography (CAT). It uses computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting. The 1979 Nobel Prize in Physiology or Medicine was awarded jointly to South African American physicist Allan M. Cormack and British electrical engineer Godfrey N. Hounsfield "for the development of computer assisted tomography."

MintSouth African Mint Mint MarkNo mint mark Total Mintage1,700
Obverse
South Africa / Silver Crown 2018 Computed Tomography - obverse photo

The obverse shows the Coat of Arms of South Africa at centre, dividing the date 2018, with the legend SOUTH AFRICA written around in all the eleven official languages of the country, the inscriptions in a pentagonal pattern with two rows on each side:
Ningizimu Afrika in Zulu,
Aforika Borwa in Tswana,
Afurika Tshipembe in Venda,
Afrika Borwa in Northern Sotho and Southern Sotho,
iSewula Afrika in Southern Ndebele,
South Africa in English,
uMzantsi Afrika in Xhosa,
iNingizimu Afrika in Swazi,
Afrika Dzonga in Tsonga, and
Suid-Afrika in Afrikaans.

The designer's initials ALS (for Arthur L. Sutherland) are to the left of the Coat of Arms.

Obverse Inscription SOUTH AFRICA 2018
Reverse
South Africa / Silver Crown 2018 Computed Tomography - reverse photo

The reverse of the coin shows a human head indicating the area to the scanned, with overlaid computer printouts. The circle on the crown is a place holder for the smaller "tickey" coin which, when placed onto the crown, gives the impression of a CAT-scan.

Under the circle, the value and denomination R 2 (Two Rand), below which COMPUTED TOMOGRAPHY. Above right, 1956.

Around below left, the metal content and composition: 1oz Ag925 Cu75 (one ounce silver, 92.5% silver, 7.5% copper).

Above left, the initials of the die-sinker, PB (for Paul Botes).

Reverse Inscription R 2 COMPUTED TOMOGRAPHY 1956 1oz Ag925 Cu75
EdgeMilledEdge InscriptionNone
Notes

Mintage limited to 1,000 individually carded coins (issue price R 995), plus 700 in sets.

Issued in Set
2018 Sterling-Silver Crown and Tickey Set, mintage unknown, limited to 700
2 coins: Silver Crown, Silver Tickey
Silver Crown 2018 Computed Tomography: References to Information Used
SourceEditionAboutLinkNotes
South African Mint Mintage link
All (46) Coins of Country: South Africa, Type: Silver Ounce (1 oz)
Coin NameMintageSymbolLegend
Silver Ounce 2015 Whale unknown Coat of Arms of South Africa SOUTH AFRICA 2015
Silver Ounce 2015 KBR - Land unknown SOUTH AFRICA 2015
Silver Ounce 2015 KBR - Sea unknown SOUTH AFRICA 2015
Silver Crown 2015 Griqua Town - Upper unknown Coat of Arms of South Africa SOUTH AFRICA 2015
Silver Crown 2015 Griqua Town - Lower unknown Coat of Arms of South Africa SOUTH AFRICA 2015
Silver Crown 2015 Steam Trains unknown Coat of Arms of South Africa SOUTH AFRICA 2015
Silver Ounce 2016 Sunbird unknown SOUTH AFRICA 2016
Silver Ounce 2016 Rock-jumper unknown SOUTH AFRICA 2016
Silver Ounce 2016 Disa unknown SOUTH AFRICA 2016
Silver Ounce 2016 Gladiolus unknown SOUTH AFRICA 2016
Silver Crown 2016 CWCBR - Fossils unknown SOUTH AFRICA 2016
Silver Crown 2016 CWCBR - People unknown SOUTH AFRICA 2016
Silver Crown 2016 Dolos unknown Coat of Arms of South Africa SOUTH AFRICA 2016
Silver Ounce 2016 Cheetah unknown Coat of Arms of South Africa SOUTH AFRICA 2016
Silver Ounce 2016 White Shark unknown Coat of Arms of South Africa SOUTH AFRICA 2016
Silver Ounce 2017 Caspian Tern unknown SOUTH AFRICA 2017
Silver Ounce 2017 Blue Crane unknown SOUTH AFRICA 2017
Silver Ounce 2017 Starfish Lily unknown SOUTH AFRICA 2017
Silver Ounce 2017 Yellow Wine Cup unknown SOUTH AFRICA 2017
Silver Ounce 2017 OR Tambo Centenary unknown Coat of Arms of South Africa SOUTH AFRICA 2017
Silver Crown 2017 Heart Transplant unknown Coat of Arms of South Africa SOUTH AFRICA 2017
Silver Ounce 2017 Krugerrand unknown Paul Kruger by Otto Schultz SUID-AFRIKA · SOUTH AFRICA
Silver Crown 2018 FIFA World Cup 33,000 Coat of Arms of South Africa SOUTH AFRICA 2018
Silver Ounce 2018 Sandgrouse 1,400 SOUTH AFRICA 2018
Silver Ounce 2018 Heron 1,400 SOUTH AFRICA 2018
Silver Ounce 2018 Orange Tritonia 1,400 SOUTH AFRICA 2018
Silver Ounce 2018 Grass Crinum 1,400 SOUTH AFRICA 2018
Silver Ounce 2018 UNESCO - Cape Griffon 850 SOUTH AFRICA 2018
Silver Ounce 2018 UNESCO - Kudu 850 SOUTH AFRICA 2018
Silver Crown 2018 Computed Tomography 1,700 Coat of Arms of South Africa SOUTH AFRICA 2018
Silver Ounce 2018 Nelson Mandela Centenary 10,700 Coat of Arms of South Africa SOUTH AFRICA 2018
Silver Ounce 2018 Krugerrand unknown Paul Kruger by Otto Schultz SUID-AFRIKA · SOUTH AFRICA
Silver Ounce 2019 Big Five - Elephant 18,000 Coat of Arms of South Africa SOUTH AFRICA BIG FIVE 2019
Silver Ounce 2019 Big Five - Lion 18,000 Coat of Arms of South Africa SOUTH AFRICA BIG FIVE 2019
Silver Ounce 2019 Constitutional Democracy 12,475 Coat of Arms of South Africa SOUTH AFRICA 2019
Silver Crown 2019 Polymer Putty 2,200 Coat of Arms of South Africa SOUTH AFRICA 2019
Silver Ounce 2019 Rise of the Dinosaurs 50,000 RISE OF THE DINOSAURS SOUTH AFRICA MMXIX ARCHOSAURIA
Silver Ounce 2019 Turaco 2,000 SOUTH AFRICA 2019
Silver Ounce 2019 Hornbill 2,000 SOUTH AFRICA 2019
Silver Ounce 2019 Flame Lily 2,000 SOUTH AFRICA 2019
Silver Ounce 2019 Impala Lily 2,000 SOUTH AFRICA 2019
Silver Ounce 2019 Krugerrand unknown Paul Kruger by Otto Schultz SUID-AFRIKA · SOUTH AFRICA
Silver Crown 2020 Retinal Cryoprobe 2,200 Coat of Arms of South Africa SOUTH AFRICA 2020
Silver Ounce 2020 Rise of the Dinosaurs 15,000 RISE OF THE DINOSAURS SOUTH AFRICA MMXX ARCHOSAURIA
Silver Ounce 2020 Big Five - Rhino 18,000 Coat of Arms of South Africa SOUTH AFRICA BIG FIVE 2020
Silver Ounce 2020 Krugerrand unknown Paul Kruger by Otto Schultz SUID-AFRIKA · SOUTH AFRICA
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Silver Crown 2018 Computed Tomography: Details
CountrySouth Africa
CurrencyRand
Coin TypeSilver Ounce (1 oz) Crown
Issued2018
SymbolCoat of Arms of South Africa
Face ValueVaries (x Rand)
Total Mintage1,700
CurrentYes
Material0.925 Silver
TechnologyMilled (machine-made)
ShapeRound
OrientationMedal Alignment (Axis 0)
Size (mm)33.6260
Mass (g)38.7250
OCC IDBYNK-ODDC-MDBG-OPQM
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Silver Crown 2018 Computed Tomography: Photos
ImageDetails
R2 sterling silver crown 2019
Copyright: South African Mint
Source
R2 sterling silver crown 2019
Copyright: South African Mint
Source