Ott's universal planimeter
Ott's universal planimeter, engraved "A. Ott, Kempten, No.20308"
- Object Number:
- 1924-547 Pt1
Ott's universal planimeter, in fitted case.
Ott's universal planimeter, engraved "A. Ott, Kempten, No.20308"
Case for Ott's universal planimeter