Mook,
Here's something I uncovered. Post on TO about a private railcar spotted at Mayta and Jensen's spur . So that records at least one old time use of this spur, and the story says that the railcar was trucked to the Coke lead. Put on rails and moved up to Mayta Jensen. Rebuilt. Then put back on a truck and delivered to Bechtel headquarters at 50 Beale St.
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