Postby scruggsrandy » Wed Jan 11, 2012 3:57 am
Hi, Urban.
Both of the marks are noted in Hougart's Little Book of Mexican Silver Trade and Hallmarks (2006).
There's not much more on the first one than what you can see in the mark. The name and location, that is.: A.S. González, who worked in Monterrey, Nuevo León. Looks to be .925 silver.
The second is from Casa Prieto, Avenida Juárez 40, Mexico City, a silversmithing operation that was active mentioned in another source (Olavarria) in 1946. (so, possibly active before and after, but apparently no longer in business).
Hard to say what the bigger logo below reads, exactly, but there are three "ETD" stamps listed on p. 229 of Hougart. All of them include "925," however, and your item appears to be stamped 950. One of the three listings reads "ETD 925, inside a Sterling Mexico. D.F. circle." (Mexico City is in the DF.)
Hope this was somewhat helpful.
randy