Hibbert's magnetic balance by W.G. Pye & Co. Cambridge
- maker:
- W G Pye and Company Limited
Hibbert's magnetic balance by W.G. Pye & Co. Cambridge, with one ball-ended magnet forming the balance beam and four other ball-ended magnets
Hibbert's magnetic balance by W.G. Pye & Co. Cambridge, with one ball-ended magnet forming the balance beam and four other ball-ended magnets
