Remington 44 revolver, c 1863.

Hero's aeolipile and steam boiler, 1st century BC.

Hero's aeolipile and steam boiler, 1st century BC.

A group of stereoscopic viewers, 1850-1869.

A group of stereoscopic viewers, 1850-1869.

Small boy playing with a toy milk truck, c

Small boy holding a toy gun inside a box ma

'Playskool' wooden toy, 1960-1980.

Electrostatically-operated toy, 1880-1940.

Magnetic toy, 1765. Made by George Adams of

Father Christmas distributes toys to poor children, 7 December 1934.

Little boy sitting in a toy car in the park