The picture shows a view of this Old USAir Airlines GoldEmployee Advertising Pin With Diamonds. The pin is not dated. We believe that this is a twenty year employee pin with a diamond for each decade of service. The pin is gold and we are assuming that the two stones mounted on the pin are diamonds. They have not been tested. The back section is pictured and included. It is not marked. The pin is marked on the two sides as follows:
USAIR (logo) 1/10 10K
The front of the pin measures 1/2'' x 3/16''. It is in mint condition as pictured.