This single strap shoulder holster made for the 1911 .45 cal. auto. This holster was designed to be worn with the adjustable strap over the head on the right shoulder with the strap crossing over the chest. The closing strap is secured with a “Lift-The-Dot” fastener and the bottom strap with a snap. This M-3 holster was designed to meet Air Corps requirements for a holster that would not interfere with the pilots access to the plane’s controls or his wearing a parachute, Constructed of tan cowhide, embossed U.S.M.C.