The picture shows a view of this Old United States AirForce Security Force Enameled Insignia Pin. The pin is not dated and the year that it was made is unknown. The pin is brass and it is enameled in blue and white. It features an insignia with an eagle. It has two pins on the unmarked back and the pin back sections are included. It is marked on a banner as follows:
DEFENSOR FORTIS
The pin measures about 1-1/4'' x 1-1/8''. It appears to be in mint unused condition as pictured.