Two Roman ships.

The five orders of architecture, 1745.

Huygens probe Surface Science Package instruments, 1997.

Lead ingots, mid 19th century.

Bronze bull weight, Egyptian, c 1500 BC.

Aluminium bronze. Light micrograph in

Alumina bronze. Light micrograph in uncross

Aluminium bronze, light micrograph, 1990s.

Fred, George and their companion riding a BSA motor-cycle combination, 1940.

Combine harvester, New Zealand, March 1997.

Combine harvester, New Zealand, March 1997.

Combination letter padlock, 19th century.