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Yep, Ketchup works as does Coca-Cola, and several other food items that have citric, phosphoric, or acetic acids in there make-up. Even the box of Arm & Hammer powder will clean as well, but it is a Base, instead of being an acid.
But... he was just wanting to remove dirt and grime, not the natural patina that forms on a lot of metal coins, due to various reasons.
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84' Steelslantnose Cab.
1953 Dodge B-4-B-108" 90,127 miles
1953 Dodge B-4-C-116" 58,146 miles
1954 Dodge C-1-B8-108" 241V8 POLY
1973 Roadrunner 440-SIX-PACK*
1986 F-250 Super Cab-460 V8 tow
Newest additions-
Matching numbers 1973 340 Road Runner!!
1948 Dodge B-1-F-152" 1-1/2 ton Dump body, 39,690 miles
others...
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