Dye-fastnes test card showing fading, c 1903.

Natural dyes shown with dyed fabrics and a model of a woad mill.

A book of dye samples, c 1910.

A book of dye samples, c 1910.

Hoffman's violet dye in a bottle.

Splash-down in the Pacific Ocean, Gemini 8 space mission, 1966.

A selection of early synthetic dyes and dyed material, mid 19th century.

Plaid wool dress, British, c 1845.

Plaid wool dress, British, c 1845.

Plaid wool dress, British, c 1845.

Plaid wool dress, British, c 1845.

Plaid wool dress, British, c 1845.