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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 flask (c. 1830-40) with glass pipette

1830-1840

Specific gravity bottle

Specific gravity bottle in tin with counterweight

Specific gravity bottle with brass counterpoise weight

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 perforated stopper c.1900.

Specific gravity bottle

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