Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
NAPIER, JOHN Scotland, 1550-1617, Baron Merchiston; published a work on logarithms in 1614 and invented two calculating devices called "Napier's Bones" and a more complicated version called the "Promptuary", in 1617. Merchiston. DNB; DSB; G.L'E. Turner 24; Tomash; etc.

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