Hopkins, Henry, [from old catalog] comp · New York, H. Hopkins & co. · leaf 145
e weight of a stone 4 feet 6 inches diam-eter and 7 inches thick. 4 ft. 6 in.=54 inch; square of 54=2916; multiplied by 7=20412; multiplied by .06363=Ans., 1298.815 lbs., which isweight of stone. All Grindstones weighing less than 200 lbs.are sold at cut-weight. This is the actual weight over… … UdellsExcelsior Ladder.
Metal-work · Hardware
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