White Mountain Freezer, ice cream maker, United States, 1923-1930.

Flower seller, London, c 1890.

Children buying ice cream from a street vendor, c 1920s.

Young boy offering his ice cream to a girl.

Young person with a giant ice cream, 1936.

Women buying ice creams from vendor outside their caravan, 11 April 1931.

Girl and chimp enjoy ice-cream

Fragrant watches, January 1985.

Box-type delivery tricycle, 1938.

Wimshurst's Influence Machine, 1886.

'Wimshurst's Influence Machine, Recent Pattern', 1886.

Snow blaster machine, c 1935.