Specific gravity bottle with brass checkweight
Two Reghault specific gravity bottles
Specific Gravity Bottle, 1900-1960
1900-1960
Specific gravity bottle
Specific Gravity Bottle, 1850-1900
1850-1900
Specific gravity bottle in tin with counterweight
Specific gravity bottle
Specific Gravity Bottle, 1900-1960
1900-1960
Specific gravity flask (c. 1830-40) with glass pipette
1830-1840
Bottle
Specific Gravity Bottle with Metal Tin-Plate Case, 1840-1850
1840-1850