Clinometer for measuring railway track grades
- maker:
- Newton and Company Limited
Clinometer, 'Abney's Level', used for measuring railway track grades, in fitted leatherette case, by Newton & Co., London, c. 1880.
Clinometer, 'Abney's Level', used for measuring railway track grades, in fitted leatherette case, by Newton & Co., London, c. 1880.
