Aztec calendar face vintage Mexican sterling silver eagle mark cufflinks. Good used condition with little to no signs of normal wear. Great vintage patina. These are very detailed with an etched rim around the face. Bullet back fastening folds and snaps into place. Stamped on the back Henco En Mexico Sterling 925 HJ with an eagle 28. This mark was used in the 1940's-1950's. 

Acid tests positive for sterling silver. 

Face measures 7/8ths of an inch across.