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Bullion mold conveyor - each bullion bar weigh 97 lb.. & this machine will turn out about 450 bars per hour. In a lead smelting plant. Leadville, Colo.
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Bullion mold conveyor - each bullion bar weigh 97 lb.. & this machine will turn out about 450 bars per hour. In a lead smelting plant. Leadville, Colo.
Collection:
Keystone-Mast Collection
Contributing Institution:
UC Riverside, California Museum of Photography