Christopher Ironside
British painter and designer of the original decimal coin reverses — 1p, 2p, 5p, 10p, 20p and 50p — introduced for Decimal Day in 1971. Ironside's portcullis £1 reverse (1983) and seated Britannia 50p (1969–2008) defined British change for nearly four decades. His 50p Britannia was retired in 2008 when Matthew Dent's Royal Shield reverses were introduced, but it returned in 2013 onwards as the standard 50p reverse.
Notable works
1971 decimal reverses
All six original decimal denominations.
1969 Britannia 50p reverse
On UK 50p coins for nearly 40 years total.
1983 portcullis £1
Ironside's heraldic £1 reverse for the new round pound.
Catalogue work
Specific catalogue attribution for Christopher Ironside is being added. Their notable works listed above include all the major coins associated with this designer.