Human skin tattooed with a blacksmith, French, 1890.

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

Specimen of an intermetallic compound of copper and aluminium, 1925.

Sample of intermetallic compound of copper and aluminium, 1925.

Combined compas and clinometer, 1870.

Combined graphometer and plummet clinometer, 1663.

Combined graphometer and plummet clinometer, 1663.

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

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

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

'Greenfield Bras Mills, near Holywell, Flintshire', Wales, 1792.

Human skin, tattooed with harlequin and figure of Samson, French, 1830-1900.