"Actinograph" exposure calculator, made by Hurter & Driffield.
Details
- Category:
- Photographic Technology
- Object Number:
- Y1985.48
- Materials:
- wood (unidentified), brass (copper, zinc alloy) and paper (fibre product)
- Measurements:
-
overall: 34 mm x 115 mm x 73 mm,
- type:
- exposure meter
- credit:
- Purchased From Christie's