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細節
An 18th-Century English fruitwood set of Napier's Bones,
unsigned, with broad rod for cubes and squares and ten multiplier rods in a tabulat with single fixed multiplier rod, contained in the original fruitwood case with sliding cover, with incised rectangular designs on the front and back -- 4in. (10.2cm.) wide
See Colour Illustration
unsigned, with broad rod for cubes and squares and ten multiplier rods in a tabulat with single fixed multiplier rod, contained in the original fruitwood case with sliding cover, with incised rectangular designs on the front and back -- 4in. (10.2cm.) wide
See Colour Illustration