Hydrometer of old form, in box. Hydrometer Index 619.
An early version of Sikes’ hydrometer. Ivory slide rule signed ‘DRING and FAGE. MAKERS No 20 TOOLEY St’.
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1876-1071
- Materials:
- brass, box: mahogany and two slide-rules: one ivory, and one boxwood/ivory
- type:
- hydrometer
- credit:
- Dring and Fage