Details
A 19th-Century brass and steel part pocket drawing set,
with boxwood sector and two scale rules, in fish-skin covered case -- 6 7/8in. (17.5cm.) long; a Bates Ready Reckoner slide rule, inscribed along the base line Published 1st June 1824 by R.B. Bate, Mathematical Instrument Maker to His Majestys' Hon.ble Board of Excise, No. 17, Poultry, London -- 14¼in.(36.2cm.) long; and a miniature abacus (3)
with boxwood sector and two scale rules, in fish-skin covered case -- 6 7/8in. (17.5cm.) long; a Bates Ready Reckoner slide rule, inscribed along the base line Published 1st June 1824 by R.B. Bate, Mathematical Instrument Maker to His Majestys' Hon.ble Board of Excise, No. 17, Poultry, London -- 14¼in.(36.2cm.) long; and a miniature abacus (3)