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- Hartmann & Braun Compass, circa 1894 -
- circa 1894
- Collections - Artifact
Hartmann & Braun Compass, circa 1894
- Hartmann & Braun Meter, 1890-1893 -
- 1890-1893
- Collections - Artifact
Hartmann & Braun Meter, 1890-1893
- Deprez et Carpentier Ammeter -
- Collections - Artifact
Deprez et Carpentier Ammeter
- James W. Queen & Company Induction coil, 1870-1893 -
- 1870-1893
- Collections - Artifact
James W. Queen & Company Induction coil, 1870-1893
- Set of Drafting Tools Presented to Jerome Wheelock, 1865 -
- 1865
- Collections - Artifact
Set of Drafting Tools Presented to Jerome Wheelock, 1865
- James W. Queen & Company Carhart-Clark Standard Cell Battery, 1889-1893 -
- 1889-1893
- Collections - Artifact
James W. Queen & Company Carhart-Clark Standard Cell Battery, 1889-1893