The 'eagle' mark also known as the 'bell' mark, or Mexican government assay mark, was used from approximately 1946 to 1979 (according to Warmans Jewelry 2nd edition by Christie Romero), and signified that the item so marked was at least of sterling (0.925 or 92.5% silver) quality. Oftentimes makers used higher quality silver, sometimes as much as .990 or 99.0 % pure silver! However, the use of this mark was inconsistent and erratic.

The primary use of the eagle mark to collectors is as an aid in circa dating. The lack of an eagle mark, however, does not rule out the item being made during this period.

Attribution to a specific maker cannot be made with certainty based solely upon an eagle mark. Other considerations such as style and workmanship play a greater role in making such a determination when a maker's mark is absent.

This list has been compiled from actual observation by several collectors, and should be considered a work in progress. Additions are welcomed!

We would like to express our gratitude to Phyllis Goddard for this updated version of Mexican 'Eagle Marks'. 

1   Generic mark for Mexico City

1   William Spratling

1   Los Castillo

1   Santos

1   Anita (Hector Gomez) – was a 14 year Spratling apprentice

1   AR

1   ARI

1   CLS

1   HCV Plata 925 Hecho en Mexico DF

2   ECP

2   Bernice Goodspeed

3   RHC or RHG

3   R. Chavarrieta

3   Piedra y Plata

3   Hector Aguilar

3   Antonia

3   Ledesma

3   Sigi

3   Bernice Goodspeed

3   Marciela (Ysidro Garcia)

3   VJC for Victor Jaimez

3   MRV

3   JN Jacobo

3   Delfino

3  Generic mark for Taxco

3  Abriaca

3  JLF

3  JS

3  BR

3  SD or SC

3  ORVELO

3  NESTOR

3 Generic mark for Guadalajara

5. Chato Castillo

7  Tane?

9   Hector Aguilar

11 Gonzalo Morenom, Mexico DF

12  Victoria

12  Antonio?

13  Spratling

13  Conquistador

15  Los Castillo

16  Margot

17  Antonio

18 Antonio?

22  Bernice Goodspeed

23  ATE

24 ?Idetae Mexico D.F. (cheese knife)

26  Lopez

      Bernice Goodspeed?

30  Spratling

34  Parra (Conquistador)

35  Sigi

36  Sigi

36  Salvador Teran

40  Reveri Castillo

47  Los Ballesteros

56 Salvador?

58  Antonio and Los Castillo on the same piece (fish bracelet)

60  Ledesma

63  Spratling

71 Tane?

84 Miguel Garcia

123 Matl

129 Matl

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