Sterling Silver & Abalone Calendar Brooch Pendant Mexico 925

round brooch pendant with Mayan Calendar bordered with Sterling Silver & abalone.  Excellent condition and is ready to be worn as a brooch or a pendant.  Brooch pendant made between 1955 - 1979 (dated based on variety / type of Eagle 4 stamp used).     Abalone has beautiful transition / range of light pink, light blue & light green.   You won't find this kind of quality and craftmanship for this price in any jewelry store.   The brooch approximately 1 1/2" inch wide and weighs approximately 8.69 grams. Back has Sterling hallmark stamps "Sterling", "925" and is stamped "Hecho En Mexico".   Brooch also has an Eagle 4 stamp.  Brooch pendant made between 1955 - 1979 (dated based on variety / type of Eagle 4 stamp used).