Elizabeth II (1952-2022), Decimal issues, Trial 50 Pence, 1994, in cupro-nickel, by R. Maklouf, on normal hexagonal flan, coronetted bust right as the regular issue, but royal mint trial stamped in front, rev. Britannia, royal mint trial stamped at right, edge plain, 27mm, 8.30g. Struck from polished dies, minor scuffing, otherwise better than extremely fine, extremely rare £300-£400

Eric Charles Walford, MBE (1938-98), of Merton, Surrey, and by descent; DNW Auction 54, 19 June 2002, lot 300