Vintage Mexico silver and jade spider brooch.

This wonderful old brooch is made of silver (I believe it to be sterling as is common with this type of piece) and a nice piece of Mexican jade for the body of the spider it weighs 14.9 grams and is 2 and 1/4 inches wide, 1 and 3/4 long, and 1 inch tall. If you look close at the bottom it does appear to be signed. Thank you for looking. Cheers.