Genuine U.S. Army Vietnam War era M1956 1 quart canteen cover in excellent condition and appears unissued, this is a 2nd pattern with two snap fasteners to font and slide keepers/Alice clips to back, DSA (Defense Supply Agency) contract markings to back and  made in 1965, with U.S. ink markings to front. The genuine U.S. M1961 1 quart plastic polyethylene canteen is also in excellent condition with 'U.S.' markings to base and dated 1966. The genuine U.S. M1910 aluminum mug is 'U.S.' marked and made by Ingersoll Products and dated 1965. A very nice complete mid sixties canteen set.