Alumina bronze. Light micrograph in uncross

Aluminium bronze, light micrograph, 1990s.

Roman balance, AD 350.

Roman balance and weights, AD 350.

Celtic bronze balance beam and lead weight, Isle of Man, 8th century.

Bronze axehead, Ecuador.

Aluminium bronze.

Aluminium bronze, light micrograph, 1990s.

Laryngeal instruments, early 20th century.

Bronze medal commemorating the 150th annive

Aluminium bronze. Light micrograph in cros

Bronze chisel and sharpening stone, Egypt, c 3000 BC.