Fifty Pence 2021 Discovery of Insulin, Coin from United Kingdom - detailed information

The British fifty pence (50p) coin - often pronounced as "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UK Fifty Pence coin was issued in 1969 with the classic Britannia reverse design by Christopher Ironside, which was superseded in 2008 by the Matthew Dent design for circulation coins.The denomination is also extensively used to issue circulating commemorative coins.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 commemorative 50p coin marks the 100th anniversary of the Discovery of Insulin.

The Mint says about it:
"In terms of a lasting legacy around the world, it can be argued that few medical breakthroughs of the twentieth century can rival the impact of the discovery of insulin in 1921. A veritable lifeline for millions each day, its use in the treatment of diabetes has saved countless lives worldwide since its introduction and has allowed science to tame a condition that had baffled mankind for centuries.

In the early twentieth century, the onset of diabetes posed grave consequences for anyone unfortunate enough to receive a diagnosis, with the common prognosis being just one year to live thereafter. Fortunately, that all changed in 1921 thanks to the pioneering work of John Macleod, Sir Frederick Banting, and their expert team consisting of Charles Best and James Collip. The innovative work of Macleod, Banting et al. changed the landscape of the treatment for diabetes and turned it into a manageable condition. Since then, the use of insulin has allowed people living with diabetes throughout the world to live full lives largely unhindered by the lifelong effects of the condition.

In the year of its 100th anniversary, The Royal Mint is proud to celebrate the discovery of insulin with a commemorative UK 50p coin as part of the Innovation in Science series. In tribute to the pioneering efforts of 1921, the reverse design combines an artistic illustration of insulin’s molecular structure with its chemical symbol in a numismatic tribute befitting such a historic discovery."

The coins were issued in a variety of collector formats only. No coins of this type were released into circulation.