1. Modification work order MWO (series). Ord G501-W32. [Truck, 2½-ton, 6 x 6, amphibian (GMCDUKW-353).]; June 5, 1950. Bookmark Corporate/Agency Authors: Army Department and Defense Dept. Publisher: Army Department Date: [1950.] SuDoc number: D 101.29:Ord G501-W32