S&A 500-799:
S&A 500-799
These 40'-6", 50-ton box cars were built by PS (Lot 8151) in 12/1953-1/1954 as PS-1s. They featured 8' sliding doors and 3888 ft3 capacity.
Many of these cars were rebuilt by Southern's Hayne Shops in 1975 and became SOU 508575-508724 mixed with CofG 7300-8299.