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Two Reghault specific gravity bottles

Specific gravity bottle with brass checkweight

Specific gravity bottle

Specific Gravity Bottle, 1900-1960

1900-1960

Specific gravity bottle with brass counterpoise weight

Specific gravity flask (c. 1830-40) with glass pipette

1830-1840

Specific gravity bottle

Specific gravity bottle in tin with counterweight

Specific Gravity Bottle, 1850-1900

1850-1900

Specific Gravity Bottle, 1900-1960

1900-1960
Glass Specific Gravity Bottle with perforated stopper in tin-plate iron case, with counterpoise container in lid [1000 grains], 1840-50.

Specific Gravity Bottle with Metal Tin-Plate Case, 1840-1850

1840-1850
Specific gravity bottle and counterweight in fitted mahogany box, mid-19th century.

Specific gravity bottle and counterweight in fitted mahogany box

Specific gravity bottle with thermometer for butter tests

Specific gravity bottle with thermometer

Specific gravity bottle fitted with a funnel shaped stopper.

Specific gravity bottle

Specific gravity bottle with perforated stopper c.1900.

Specific gravity bottle