Shelton vibrator, Chicago, USA, 1910-1930.

Shelton vibrator, Chicago, USA, 1910-1930.

Goggles and spectacles, English, 1851-1950.

'The Arts and Manufacture of China', 1850.

'The Arts and Manufacture of Turkey and China', 1850.

Steam lorries, c 1930.

Interior of a tyre factory, c 1930.

Three-ring Enigma cypher machine.

Four fountain pens with case, 1896-1940.

Surgical instrument set, Chinese, 18th-19th century.

Mechanical leech in a case, c 1850.

Steel fleam and bloodstick in mahogany case, 1850-1853.