A fine set of 18th-Century boxwood Napier's bones, unsigned , with eleven calculating rods, a plain broader rod of the same wood, and a ( replacement ) back board, contained in a boxwood case with sliding cover and decorative geometric engraving -- 3½in. (8.9cm.) wide See Colour Illustration
A fine set of 18th-Century boxwood Napier's bones, unsigned , with eleven calculating rods, a plain broader rod of the same wood, and a ( replacement ) back board, contained in a boxwood case with sliding cover and decorative geometric engraving -- 3½in. (8.9cm.) wide See Colour Illustration
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