Brass Depthing Tool by John Downes

Description:

Brass Depthing Tool by John Downes, London, late 18th century, three iron legs support the brass frame with three clamp work holder, upright pivoted center with brass arm for contact with the calibrated snail engraved John Downes, London, ht. 9 1/2 in.

Literature: British Horological Institute Journal, April 1992, pp. 346
Estimate $400-600

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