179
179. A 19TH-CENTURY TURNED-IVORY THERMOMETER
constructed in three sections in the form of an ‘Eleanor Cross’ the mercury tube set to front with range of 20-120º and annotated Freezing to Fever Heat opposite, secured to ebonised base within glass dome -- 10½in. (26.5cm.) high
£150-250 180.
A MODERN THERMO-BAROGRAPH BY CASELLA, LONDON
the drum with eight-day clockwork motor, temperature/pressure- recording arms with felt tip markers, contained in a plastic case with plexi-glass flip-lid and folding metal handle, the front with applied maker’s mark signed as per title -- 11¾in. (30cm.) diameter
£80-120
181. A LATE 18TH/EARLY 19TH-CENTURY MARINE INCLINOMETER, ATTRIBUTED TO JESSE RAMSDEN
the lacquered-brass pendulum indicator with reciprocating upper action mounted on a bedplate engraved with two 30º scales and broad arrow marks, contained within an inverted glazed keystone case for bulkhead mounting -- 22in. (56cm.) high
A near-identical example of this instrument signed by Ramsden was sold at Christie’s, South Kensington, 17 November 2004, Sale 9969, lot 210.
£500-800 182.
A GOOD TWO-CYLINDER VACUUM PUMP BY BENEVOLO, LYON, C.1880
heavily constructed in lacquered-brass and signed BENEVOLO, Opticien, A LYON on the stock, wooden-handled crank operating twin glass cylinders, brass bed plate supporting enclosed mercury thermometer, isolation and operating valves, circular glass bell jar platform with cylinder and fruitwood funnel to top, overall -- 20in. (51cm.) square
£400-600
183. A 19TH-CENTURY HAND-OPERATED VACUUM PUMP
unsigned, constructed of cast iron and brass, glass-enclosed cylinder, atmospheric mercury level, bell jar and platform with adjustable input valve, mounted on mahogany base -- 15 x 28in. (38 x 71cm.); together with a hand-cranked set of bellows; and a small swordfish rostrum
(3) £100-150
180 181
183 additional images online at
www.charlesmillerltd.com
182 53
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