Grateful advice from anyone about the following set of three (3) hallmarks, all of which are square (or square/cut corners). They are on the reverse of a Royal Household enamel badge.
The first (1) hallmark is the correct h'mark for Birmingham (anchor, side on).
The third (3) hallmark is of a Lion Passant (facing towards the anchor).
Hallmark Two (2) is my problem. It looks like a crown or even a castle, but I can't find a match anywhere in my book on English Silver Hallmarks (Banister).
Finally, the words "Sterling" are also stamped on the reverse.
Any help, please?
Cheers,
GeoffD

