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This thing followed me home. How could I deny a dirty and abused homeless oddball? The L-73 is a 1" drive ratchet but this one was made for a square 1 3/16 fastener yet still bears the standard part number. The finish seems to be cadmium plating. The vendor who had this seems to specialize in finding stuff buried for at least a decade and this was no exception I probably cleaned about 5 pounds of dirt off it but it still has the oil port.
1952 date code.
I might get a a repair kit and convert it to a regular 1" drive since it carries the part number.