Ivory specimen with quadruple helices
Hollow ivory specimen with quadruple helices made with turning lathe
Details
- Category:
- Hand and Machine Tools
- Object Number:
- 1928-1162/8
- Materials:
- ivory
- Measurements:
-
overall: 44 mm x 22 mm x 22 mm, 0.022 kg
- type:
- specimen
- credit:
- Holtzapffel and Company