Description

A superb W. A. Kelly & Hubbell wrench jaw attachment, carrying the August 10, 1886 patent date, and an outstanding example of one of the most interesting late‑19th‑century wrench innovations.

This patented jaw attachment was designed to expand the capability of a standard wrench, giving it a more versatile and adaptive gripping profile at a time when adjustable tools were rapidly evolving. This example is especially desirable because it is clearly marked with both the patent date and the maker’s name, something not all surviving pieces retain.

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