Wheatstone type photometer, in brass box, six cork discs with silvered beads to give various curves, by William Ladd, London, England, 1870-1872.
- Object Number:
- 1872-38 Pt1
- bitumen, brass (copper, zinc alloy), coated metal, copper (alloy), cork, glass, ivory, metal (unknown) and steel (metal)
each cork disc: 10 mm x x , 24 mm,
overall weight: x x , , .24kg
- Ladd, W.
Cite this page
We encourage the use and reuse of our collection data.
Data in the title, made, maker and details fields are released under Creative Commons Zero
Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence
Download catalogue entry as json
View manifest in IIIF viewer
Download manifest IIIF
Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.