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Gilt salinometer by unknown maker

1870-1950

Salinometer in gilt brass having a rectangular stem inscribed with scale 0

late 19th century

Salinometer, nickel plated

1854-1877

Nickel-silver salinometer

"Hezzanith" Salinometer

1940-1950

Salinometer (c. 1860) by DRING & FAGE LONDON

1860

Metal hydrometer by Watkins and Hill (Salinometer). 9" long stem engraved Watkins & Hill London

Ship-board salinometer, by Autolab Industries, Sydney, still in working order, with description of its use on the Medoc expedition for deep ocean waters, in use until 1993.

Ship-board salinometer

1969

Salinometer, metal range 0 to 0.4/32 "Blow" scale. G.H. Zeal Ltd., London, 1984.

Salinometer, metal range 0 to 0.4/32 "Blow" scale. G.H. Zeal Ltd.

Example of A.P. How's salinometer, in silver, used to determine the density of water drawn from a steam boiler, velvet-lined wood case, by T.O. Buss, London, England, 1860-1870

Example of How's Salinometer, with case

1860-1870

An example in brass of Andrew Peddie How's patent salinometer, capable of indicating gravity and temperature of water in marine boilers, patented by Andrew Peddie How in 1849, mounted on teak stand, unsigned, 1849-1850

Example of Andrew Peddie How's salinometer

1849-1850

Example of Spray and Novett's patented salinometer used to register the salinity of water in a boiler, consisting of a gun-metal globe attached to a thermometer, bolted to a decorative wood mount, by Horne and Thornthwait, London, England, 1849-1858

Example of Spray and Novett's patented salinometer used to register the salinity of water in a boiler

1849-1858