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These gallon markers came out of a Model 84 Butler (ca1929?). I have one rod of all numbers and one rod of numbers 0-7. The full rod is how they came out. The second pic (numbers 0-7) is after I cleaned up the markers - with vinegar and Bar Keepers Friend. They still looked very used.

My question is not so much value, but are these in good enough condition that anyone would want to use them? Or are they too far gone and simply need to be pitched? Thanks for your ideas.