Recently I had the pleasure of making my small clam shell pendant in 9ct gold for a very patient customer. The pendant was an anniversary and birthday present combined so to commemorate a special year we opted to have the Platinum Jubilee hallmark added, alongside the usual marks.
Her Majesty The Queen is the first British Monarch to celebrate a Platinum Jubilee, seventy years of service, having acceded to the throne in 1952. To celebrate the occasion, the body which oversees UK hallmarking, the British Hallmarking Council, has sanctioned a commemorative component mark. Designed by Thomas Fattorini Ltd, the mark depicts an orb, and can be applied to precious metal, alongside a hallmark, by any one of the four UK Assay Offices.
I use Birmingham Assay Office as this is where I grew up and it is recognisable by the anchor stamp within my hallmark.
On the finished shell, you can see my hallmark has been applied by laser to keep the shape and delicate pattern of the shell which may be compromised if we were to stamp it. KW is my makers mark, 375 indicates it is 9ct gold (375 parts per 1000) the anchor is for Birmingham Assay and the X is the date year (2022). Underneath you can then see the distinctive orb mark for the Platinum Jubilee. The detail in these marks is impeccable considering the shell is no bigger than a thumbnail!