Roberts' planing machine for metals.

Metal dewar vacuum flask.

'A Smoking Party - in the Province of Bengal', India, 1809.

Gun metal. Light micrograph in differential

Gun metal. Light micrograph in bright field

Original planing machine for metals

Monotype composition caster used for hot-metal typesetting.

Metal shrine containing an image of the Buddha, Tibetan, 19th century.

Junkers F-13 all-metal transport monoplane.

All metal camera designed by Gaudin, c 1845.

Plastic and metal buckle, c 1940.

Bismuth metal, in crystalline form, 1913.