Bidspirit auction | UK 2021 Discovery of Insulin

UK 2021 Discovery of Insulin 50p Brilliant Uncirculated Coin - A UK cupro-nickel 50p coin commemorating the centenary of the discovery of insulin. The coin features the Discovery of Insulin reverse design by Iris De La Torre, which includes the inscription insulin and the chemical formula C257 H383 N65 O77 S6. The coin is a Brilliant Uncirculated strike presented in its original navy blue Royal Mint commemorative card with a security hologram. This 2021 issue marks the 100th anniversary of the medical breakthrough. Diameter: 27.3 mm Weight: 8.00 g.