Potential galvanometer made by Siemen Bros. and Co
Potential galvanometer made by Siemen Bros. and Co., No.1836...
- Object Number:
- 1909-161 Pt1
- type:
- galvanometers
Potential galvanometer made by Siemen Bros. and Co., No.1836, with manuscript correction table
Potential galvanometer made by Siemen Bros. and Co., No.1836...
Manuscript correction table for Siemen's potential galvanometer