Good example of an English Universal Mandrel, circa 1880.
Brass frame, 4 1/2 inch faceplate with all its dogs, the universal slide stamped J WATERS, COVENTRY. With brass handwheel with ebonised handle. Length 13 1/2 inches (35 cm).
I can find no trace of J Waters but they are likely to be the makers/suppliers of this nicely appointed mandrel(mandril). An example with universal slide (they were an option, as was the hand wheel), is shown in the Grimshaw & Baxter catalogue of circa 1900. This is reproduced in Crom's Horological Shop Tools page 529.
In good unpolished condition, the pump centre sized but complete, the steel screws with surface corrosion and the handle of the slide bent and with detached handle (shown in pics), but complete. Rare, in my experience, to have a Coventry maker.
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