A-50-16 Auto Box Cars:
SP 66175-66674 (to SP 200588-201084, 605004-605005, 610180-610188)
These 40'-6" all-steel automobile box cars were built by Mount Vernon Car Co. (owned by Pressed Steel Car Co. at the thime) in 11-12/1947. They featured double sliding doors with a 14'-7" opening, Improved Dreadnaughtends, steel grid running boards and 3960 ft3 capacity.
A Tony Thompson review of the Sunshine HO scale model of this class in the Spring 1997 (#51) edition of the SP Historical and Technical Society's magazine Trainline.

Photo from: Jim Kinkaid Collection - Mount Vernon Car Co. Builder's Photo
SP:
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Jim Kinkaid Collection |
Mount Vernon Car Co. Builder's Photo |