Description

A David Keer patented wrench, marked Flint, Michigan with the March 15, 1921 patent date, a scarce and distinctive example from one of the lesser‑known early 20th‑century wrench innovators.

Examples of Keer’s patented wrenches don’t surface often, and this one shows clean lines, crisp markings, and that unmistakable 1920s industrial character. A great piece for collectors of obscure patented American wrenches.

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