: A specific font and letter used to denote the year of hallmarking, following a cyclical pattern. Significant Modern Databases
A complete hallmark traditionally consists of several distinct stamps that, when cross-referenced against a database, provide a comprehensive profile of the piece: jewelry-hallmark-database
: Reveals the official office where the metal was tested, such as the London Leopard or Birmingham Anchor . : A specific font and letter used to
: A unique signature (initials, logo, or symbol) identifying the manufacturer or craftsperson. when cross-referenced against a database
: Indicates the metal’s purity, such as 925 for sterling silver or 375 for 9-karat gold.
Digital repositories have consolidated centuries of disparate records into searchable formats. Key resources include: A Guide to Jewellery Hallmarks - James Porter & Son