Is that smaller gear next to the wheel plastic? Will any of the chemicals mentioned leave the plastic alone? If left to soak, won’t anything that attacks the rust also remove the blueing from the metal? Has anyone tried gun blueing on Lionel parts? If so, how close will it come out to the original Lionel color? With all of the work involved, eBay has similar postwar trucks in the $20 range. Wouldn’t that be easiest and maybe cheapest?
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