"Osler's Patent Letter Gauge" (c.1839)
"Osler's Patent Letter Gauge" (c.1839), Ivory plunger marked to weight 2 ozs to 1/4 oz; a tube of mercury fices in an ormolu socket on a square base. Green label, A.F.OSLER. REGISTERED NO.125. PURSUANT TO 2 & 5 VICTORIA CHAP. 17. DECEMBER 12, 1839
- Materials:
- ivory
- Object Number:
- 1993-1277/1
- type:
- postal scales and scales - weighing device
- Image ©
- The Board of Trustees of the Science Museum
