The picture shows a view of this United States Postal Service Employee 25 Year Award Pin. The year that this pin was made or awarded is unknown. The silver metal it is made from is also unknown. It is marked ''CTO'' on the back. It is marked as follows:
UNITED STATES POSTAL SERVICE U.S. MAIL 25
The pin measures 5/8'' x 5/8'' and is in near mint condition as pictured.