An English lacquered brass portable aquatic microscopeBanks, London, circa 1820square section post signed Banks, London Math'l In's Mak'r to the Prince of Wales to one side and fitted with lens above rack and pinion up/down adjustable stage with ivory slip insert and tool post holes to rim, with pivoted mirror beneath, the whole mounted via a drilled flange onto the lid of the original mahogany box containing some accessories, 10.5cm high assembled, the box 10cm wide.Ban(c)ks junior is recorded in Gloria, Clifton Directory of British Scientific Instrument Makers 1550-1851 as succeeding his brother Anthony Oldiss Bancks in around 1796. He first worked from 440 Strand, London 1796-1804 and then 441 Strand 1805-30. He received an appointment to the George IV in 1820 and then another to William IV in 1830.design of the current lot is probably derived from a model developed by John Ellis in around 1752. The main difference being that the current lot focuses by up/down movement of the stage rather than the lens. Condition report disclaimer
An English lacquered brass portable aquatic microscopeBanks, London, circa 1820square section post signed Banks, London Math'l In's Mak'r to the Prince of Wales to one side and fitted with lens above rack and pinion up/down adjustable stage with ivory slip insert and tool post holes to rim, with pivoted mirror beneath, the whole mounted via a drilled flange onto the lid of the original mahogany box containing some accessories, 10.5cm high assembled, the box 10cm wide.Ban(c)ks junior is recorded in Gloria, Clifton Directory of British Scientific Instrument Makers 1550-1851 as succeeding his brother Anthony Oldiss Bancks in around 1796. He first worked from 440 Strand, London 1796-1804 and then 441 Strand 1805-30. He received an appointment to the George IV in 1820 and then another to William IV in 1830.design of the current lot is probably derived from a model developed by John Ellis in around 1752. The main difference being that the current lot focuses by up/down movement of the stage rather than the lens. Condition report disclaimer
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