Boys' Radio-Micrometer, 1889-1893
Boy's Radio-Micrometer with two suspensions (not seen) and cover, by The Cambridge Scientific Instrument Company, Cambridge, England, 1889-1893.
- Materials:
- mahogany (wood) , brass (copper, zinc alloy) , steel (metal) , glass , wood (unidentified) and plaster
- Object Number:
- 1893-33 Pt1