UK 2021 Insulin Silver Proof Piedfort 50p Coin
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Limited to 1500: 100 Years of Insulin Silver Proof Piedfort 50p


Limited to 1500: 100 Years of Insulin Silver Proof Piedfort 50p

Commemorating the 100th anniversary of the discovery of insulin, The Royal Mint have released a new Silver Piedfort 50p coin, celebrating the historic feat made by Dr John Macleod, Sir Frederick Banting, Dr Charles Best and Dr James Collip.

A Breakthrough Discovery

Since their breakthrough discovery in 1921, millions of diabetics worldwide have been helped through revolutionised medicine.

The coin’s design depicts the molecular formula and structure of insulin, beautifully presented on .925 Silver. Struck to a Proof finish, the Piedfort coin is double the weight of the Silver Proof Issue, and contains twice the amount of Silver.

Due to the high-level skill and craftsmanship it takes to produce Piedforts, they are typically struck with small edition limits — often half that of their standard Silver counterparts! This means that for collectors, these coins are in very high demand and sell-out completely.

Sell-out Pending

As the first coin in the Innovation in Science series — the Stephen Hawking 50p — sold out in a matter of hours with an edition limit of 2,500, this coin is sure to follow suit with the tiny edition limit of 1,500!

The good news is you can add it to your collection today for a deposit of JUST £25 (+p&p), followed by four further interest-free instalments — that’s the most cost-effective way to own this popular Silver Piedfort 50p.

But with a quick SELL-OUT pending, you must act now to make sure you don’t miss out. 

Order Ref 185/Y806/0
Orders and payment terms are subject to acceptance and status. We may perform a credit check.
Price £125.00 (+ £3.99 p&p)


  • Country of Issue: UK
  • Year of Issue: 2021
  • Coin Diameter: 27.3mm
  • Coin Weight: 16g
  • Obverse: Jody Clark
  • Reverse: Iris De La Torre
  • Metal: .925 Silver
  • Finish: Proof
  • Edition Limit: 1,500

Numismatic pieces should be owned primarily for collector interest.
The Westminster Collection does not offer them as an investment and makes no guarantees in terms of future value.