Netlon bag containing imitation onions, 1988.

Mitsubishi thermal imaging system, 1989.

Cat in a measuring jug, March 1989.

Molecular models of synthetic rubber compounds, 20th century.

Skeletal type molecular models, late 20th century.

Square plastic box, c 1935.

Square plastic box, c 1935.

Cat in a measuring jug, March 1989.

Molecular models of polythene and polyamide, 1985.

Phenolic plastic electric digital clock, 1930.

Two Starr-Edwards artificial cardiac valves, 1978-1979.

Two Starr-Edwards artificial cardiac valves, 1978-1979.