Microspecimen of armour plated steel, 2003.

District Nurse's Kit, 1930-70.

Piece of armour-plated steel, USA, 2002.

"'Rolling a slab into a plate', 20th century."

Full upper and lower dentures, 1801-1870.

Jacob Perkins, American mechanical engineer and inventor, 1806.

Jacob Perkins, American mechanical engineer and inventor, 1825.

Jacob Perkins, American mechanical engineer and inventor, 1825.

Jacob Perkins, American mechanical engineer and inventor, 1825.

Landau carriage, mid 18th century.

Landau carriage, mid 18th century.

Complete upper denture, 1840-1880.