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Hi Mary Ann- Your pin is a nice one. The hallmark that you see is actually an Eagle. The Mexican govt. required that each maker of Mexican silver include the eagle hallmark to guarantee sterling silver content of the piece. The top tier designers were issued there own numbers. The eagle #3 was gener...

Keith- I had no luck researching the initials on your pin. I do know that the #3 eagle is seen on many pieces of silver, specifically from the town of Taxco, and it was usually assigned to makers who weren't well known. The top designers were all issued their own number. Sorry, I know this isn't muc...

Your necklace is Mexican. We can tell because of the Mexican government eagle assay mark with #35 that is on the clasp. The Mexican govt. began issuing these eagle marks to guranatee sterling content in about 1948. The eagle hallmark was discontinued in or around 1978. We did a little research to se...

Penny Morrill's excellent reference book SILVER MASTERS OF MEXICO talks at great length (p. 135) about Aguilars Taller Borda and the partnership with the owner of Coro, Gerald Rosenberger. It does not appear that Rosenberger partnered with any other Mexican firms but some of the designers that worke...

You do have a piece designed by Spratling but was made some time between 1978 and the last few years. 1978 being the year that the Mexican government began issuing the T marks to silver makers. The S stands for Spratling and the 24 stands for the 24th silvermaker to apply for the T mark. After Sprat...