Mexican Silver Hallmark
Mexico Silver Marks, Illustrated & Explained including the date marks
1920s - 1930s
Mexican silver marks can be traced back to circa 1900, continuing throughout the century. Markings Key marks include the "Mexico Silver" or "Silver Made in Mexico" marks that are seen on pieces from the 1920s through mid 1940s. Their silver standard varies, but is commonly above .925 purity. Eras Marks indicate silver purity in a percentage of 1000ths. An intaglio "900" mark is found on work dating from circa 1900 until the 1920s.
Mid 1930s to 1940s
Pieces from the mid-1930s to the mid 1940s generally have the intaglio marks "980, 960, 940 & 925".
1950 or afterwards is stamped "Sterling" or with an incise "925" stamp. The “Eagle” “Eagle” marks were instituted by the Mexican government in 1948.
Circa 1979, the eagle system retires and replaced by a new letter/number mark to indicate the silversmith and guarantee sterling standard.
The first letter indicates location, and there are few in use, those most commonly seen are: T, M, G & C
- T is for Taxco
- M for Mexico City,
- G is probably Guadalajara and
- C most likely Cuernavaca.
The second letter indicates the first initial of the last name of the silversmith, in our example it is C.
The number indicates that he is the 45th smith, with a name beginning with C, to register a mark in his city's assay office.
This example, TC - 45, tells us that the item on which it is stamped, was made by a smith with surname initial C sometime after 1979 in the city of Taxco. Generally that is all that can be derived from these marks, Unfortunately, there is no list that matches the letters and numbers to silversmith's names and there are probably less than 15 of these identified. Our example happens to be the mark of Antonio Castillo, one of the founders of Los Castillo and it is one of the very few known.
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