Reversible axe on adze with greenstone blade, North Papua, c 2000 BC.

Human skin with tattooed nipple, probably French, 1850-1920.

Double piston pump, c 1205.

Midland Railway double-framed 2-4-0 locomotive, c 1866.

Dowty advanced propeller system, 2000.

Dowty advanced R391 propeller system, 1999.

Thorn extracting instrument, Ugandan, c 1880.

Surgical lancets, 1750-1850.

Surgical knife, South Nigerian, c 1871-1930.

Bag of ten Bic disposable razors for sensitive skin, 1999.

Skull saw, early 20th century.

Penknife, c 1875.