W-50-3 Work Cars:
SP 10880-10959 2/1911 Rodger SP 12220-12519 5-7/1910 Rodger SP 12520-126319 2/1911 Rodger PE 6000-6049 1911 Rodger (to PE 6200-6249)
These work gondolas were built by Rodger as above in 1910-1911. They featured **** ft3 capacity.
For more detailed information, consult Tony Thompson's book Southern Pacific Freight Cars Vol. I: Gondolas and Stock Cars.