This is a WWII War Department copies of 12 Engineer Manuals, an Easy 1 Productions manual on compact disc.    This not one of the poor reproductions that are easily found on the Internet; all scans are in jpeg. form and at 400 dpi.  The CD contains FM 17-45 Armored Engineer Bn.,TM 5-271 Lt. Stream Crossing Equipage, TM 5-272 Treadway Bridge, TM 5-278 Outboard Motors, TM 5-400 Engineer Maintenance Troops, TM 5-1038 Crushing & Screening Plant,TM 5-1060 Sheeps Foot Roller, TM 5-9032 Trailer, Full, Flat Bed 8-Ton(Fruehauf),TM 5-9056 Acetylene Charging Plant, TM 5-9208 Semi-Trailer, Low Bed, with dolly, 20-ton, Jahn, Model, TM 5-9282 Power Control Unit.  It also contains 38 WWII period photos of Treadway bridging and 37 photos of an assault boat trailer with boats.  As always, if this CD is ever updated with new material, you are entitled to the upgrade.  Follow Easy 1 Productions on Facebook.