Patent aplanatic photo lens by Grubb, no. 647. Engraved with '47 Grubb Patent' on oustide.
Details
- Category:
- Photographic Technology
- Object Number:
- 1913-249
- Materials:
- brass (copper, zinc alloy) and glass
- Measurements:
-
overall: 70 mm x 90 mm x 90 mm, .65 kg
- type:
- camera lens
- credit:
- Court, Thomas Henry
