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$149
Hiram Wright 19th Century Sliding Caliper Tool
Posted about 12 hours ago in Sun City, AZ
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Description
Up for auction/sale is a highly rare and authentic 19th-century Hiram O. Wright sliding caliper tool. This unique piece of American tool history features a highly distinct circular curved jaw, originally patented on June 25, 1878 (US Patent #205,225) and manufactured by Copeland & Chamberlin of Worcester, Massachusetts. Historically used by specialized machinists, woodturners, and early plumbers to precisely check outside diameters, it features a beautifully contoured, ergonomic thumb grip slider block.
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Condition
Used (normal wear)
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