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Post by 1dave on Feb 19, 2023 10:38:14 GMT -5
Hah! I fingered it out! An Assay Ton (A.T.) = 29.166 grams. Definition of Assay Ton: A weights system created by combining aspects of Troy, Avoirdupois and Gram weights into a simple labor saving calculation unit. It was derived by reckoning in the following manner: 1 lb. av. = 7,000 troy grains. 2,000 lbs. = 1 Ton 2,000 X 7,000 = 14,000,000 Troy grains in 1 ton Av. 480 Troy grains = 1 oz Troy. 14,000,000/480 = 29,166 Troy oz. in 2,000 lbs. Av. There are 29,166 milligrams in 1 assay ton (A.T.); <Therefore 2,000 lb. is to 1 A.T. as 1 oz. Troy is to 1 milligram.> So now using this system, if 1 A.T. of ore assays 1 milligram of gold or silver, the ton contains 1 ounce Troy!
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