The Claxton improved patent ear-cap, 1925-1945.

The Claxton improved patent ear-cap, 1925-1945.

Human skin tattooed of women's heads and butterflies, French, 1900-1920.

Two aviators sitting in an aeroplane with its skin and wings removed, c 1910s.

Human skin, tattooed with flowers and inscriptions, French, 1850-1900.

Human skin, tattooed with female figure, French, 19th century.

Atkinsons' 'Skin Deep' beauty cream, c 1950.

Apparatus to demonstrate the thermal expansion of liquids, mid 19th century.

Thiersch's skin grafting razor, 1935-1950.

Wet bulb thermometer by Thomas Jones, 1816-1850.

Wet bulb thermometer by Thomas Jones, 1816-1850.

Wet bulb thermometer by Thomas Jones, 1816-1850.