These scopes were manufactured by John Unertl in 1940/41 under contract to the USMC and were originally mounted on Springfield Armory Model 1903 National Match rifles, specially modified by the USMC or Navy armorers. These rifles were officially designated as the Model 1941 Sniper. After WWII these scopes were retained by the USMC and were again reissued successfully throughout Korea, and again in Vietnam from 1962-68 when mounted on match conditioned Winchester Model 70 rifles. Approximately 2,700 of these scopes were manufactured (this example being a fairly early production scope). Marked "J. Unertl/ USMC-SNIPER/1385" with the reticle rotation ring correctly stamped with a number "8" (8 power). Standard cross-hair reticle (without a dot) and complete with the original style blackened duraluminum scope mounts and screw on lens caps. With an original WWII issue second pattern micarta scope can. These were made from a fiberboard type of material with a domed twist on cap with both of them having a green impregnated color finish and it still retains its canvas strap and belt loop attached to the side of the can.