Old military keychain of the Air Force. Unit: SRG-30/931 (badge with stylized planes and sun/lightning). Front: enameled unit insignia. Back: Saint Christopher protection medal ("Look at St. Christopher and go away reassured"). Period: around the 1960s-70s. Good original condition, with some slight signs of use (see photos). ? Nice collectible item of aviation militaria, ideal as a complement to the Drago insignia SRG-30/931. Condition: Used: Item has been used. Please check seller's description for more details... Used: Item has been used. Any imperfections. Service: Air Force.