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Box 10 -- Folder: Market Street Railway. Work Cars. 0929 Differential Dump. Prints with Negatives. Written on back: "MS.Ry. 0929 on I-B track @ west end of Duboce Tunnel. Cottrell- Motorman Jimmie-Trolley-man, ballast from D-C Quarry when Tunnel was new. Note: Only one wire up." Same crew as pictured on photo AAX-0035. A b&w photographic print exists for this copy negative.