Yep! It's listed in Coincraft as being struck in gold, silver, tin and pewter as a Unite ( Page 687, C1PT-020) Incidentally, while looking up 'Broad' in this book I spotted a milled £2 of our present queen that I didn't know existed! It certainly not listed in Spinks. It's quoted as being with head 4 and reverse 3, "Anniversary of the gold sovereign". Anyone know of it ever appearing?