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Set of 5 nested weights, gun metal

Babbitt bearing step for locomotive axle and one half-bearing brass for a small crankpin.

Babbitt bearing step for locomotive axle

1839
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
Shafting hanger 12" drop, 2" diameter, with spare wooden half bearing, date c. 1860

Shafting hanger 12" drop

circa 1860
Gyroscope with accessories for experiments.

Gyroscope with accessories for experiments.

1880 or before