Lead Spheres for Charles Vernon Boys' Gravitational Equipment, 1889
Mahogany wooden box containing two large lead spheres from Boys' Torsion Balance gravitational apparatus, 1889
- Materials:
- mahogany (wood) , pine (wood) , velvet , lead (metal) , steel (metal) , brass (copper, zinc alloy) and paper (fibre product)
- Object Number:
- 1891-99 Pt2