1068847 | GREAT BRITAIN. Elizabeth II. (Queen, 1952-2022). 2021 AV 50 Pence Die Trial Piece. NGC PR69UCAM (Ultra Cameo). By Jody Clark (Obv.) & Nigel Tudman (Rev.), Jas Bhamra (Rev.). The Royal Mint. Edge: Plain. 27.30mm. 15.50gm. Crowned bust, right / Letters and numbers representing the name Babbage in numerical code.

Trial piece for the fourth coin in the Innovation in Science series and marking the 150th anniversary of the death of Charles Babbage. Struck in 22 carat gold.

The obverse carries the ROYAL MINT TRIAL stamp as well as production hallmarks in the fields. Includes original case and Certificate of Authenticity No. 1. This is a Limited Edition Presentation of 1.


Please use this link to verify the NGC certification number 6342208006




Charles Babbage KH FRS (1791–1871) was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.