I was able to buy out a large collection of these pins.  Mostly from the 50s as some of the other insignia dates to.  Most are made by gemsco.  Light wear from storage and display.  About the size of a quarter.  

ALL ITEMS ARE AS IS. DETAILED PHOTOS AND DESCRIPTIONS MATCH THE ITEM AND SHOW AND DESCRIBE EXACT CONDITIONS. THERE IS COMBINED SHIPPING IF REQUESTED. THERE IS NO BRICK AND MORTAR STORE SO THERE IS NO LOCAL PICK-UPS.