You are viewing a fine colorful solid Sterling silver and enamel brooch / pendant made in Mexico in the 1950's. The brooch measures 2" by 2". It has a locking clasp. It has a large wire bale attached to the back so you can wear it as a pendant. It is marked: Castelan, 0.925 Mex, Sterling. It has the eagle mark with a 15 inside which was given to Los Castillo. The brooch weighs 17.6 grams.