Workers cutting down bridge approach with Caterpillar diesel D7 tractor with LeTourneau angledozer, Italy

View of workers cutting down approach for a double Bailey bridge with Caterpillar diesel D7 tractor with LeTourneau angledozer near the Arno River in Italy during World War II. Label on back: "Caterpillar Tractor Co., Peoria, Il. Rec'd from Washington, D.C. Office (W.B.T.'s). Their letter, 2-12-45. Model, D7. Description of work, 'Caterpillar,' diesel D7 tractor with Letourneau angle bulldozer cutting down approach for a double Bailey bridge being constructed by the U.S. Army Engineers across the Arno River in Italy. Credit: Signal Corp photo." Handwritten on back: "Bulldozers."