Rr-81 Class Refrigerator Cars:
SFRB 6600-6689 (to AT&SF 524000-524254, 526400-526412, 526425-526428, 526442-526456 as Bx-159 in 1972)
These 70-ton, 50'-1" insulated box cars were built by PS (Lot 8770) in 2-3/1963. They featured 10' Youngstown plug doors, 20" Keystone cushioned underframes and 4593 ft3 capacity.
These cars were relettered as AT&SF cars as above and reclassed as Bx-159 in 1972.

Photo from: Jim Kinkaid Collection - Pullman-Standard Builder's Photo
SFRB:
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Jim Kinkaid Collection |
PS Builder's Photo |