Home / Reference Books / WWII Engineer Field Manual Camouflage FM 5-20 WWII Engineer Field Manual Camouflage FM 5-20$25.00 Very good condition. Dated 1940, 4-1/2 x 6-3/4″, 52 pages. WWII Engineer Field Manual Camouflage FM 5-20 quantity Add to cart Item Number: 89862 Category: Reference Books