Historical information
Used in Physics Laboratory at Ballarat School of Mines for calculating/confirming relative density (or the specific gravity) of given metal samples. This would have been in Elementary physics experiments.
Physical description
A set of seven 2-cm cubes, individually numbered 1 - 7, in a hinged-lid storage box with black surface finish.
Inscriptions & markings
Number and metal of cubes:
1) Brass; 2) Lead; 3) Steel; 4) Copper; 5) Aluminium; 6) ? a ferrous alloy; 7) ? a ferrous alloy.