Condensing lens, 4in. diameter, for projection
Condensing lens, 4in. diameter, for projection
Details
- Category:
- Optics
- Object Number:
- 1876-952
- Materials:
- brass (copper, zinc alloy) and paint
- type:
- lens - component
- credit:
- Duboscq, J.
Condensing lens, 4in. diameter, for projection