UP B-50-38:
UP 196000-196999 (to UP 107000-107699 in 1964-1965 as B-50-53)
These 40'-6", 50-ton box cars were built by Mt. Vernon in 4-7/1946. They featured sliding doors and 3902 ft3 capacity.
A group of these cars were rebuilt by **** in 1964-1965 and re-classed as B-50-53 cars and renumbered to UP 107000-107699.