1967/69 1971/77 Columbia House published in USA out of print - Complete 24 volumes with previous owner's letter gift to his son - Excellent reference of weapons war WWI WW2 (not current world) - If you are WWI WW2 buff airplanes, small arms you would love and enjoy reading - Full of color pictures and detail internal blue prints of aircraft, warships, tanks, rifles, machine guns, artillary - Jet plane up to 1970s I think - slightly dirtied in covers from dust and non-read state but no water damages and all in very good condition - email me for more pictures - less than $5 per volume. Each volume prized over $10 easily all for less than $100 don't miss