First Aid Nursing Yeomanry (FANYs) in ambul

Hypsometer c 1897.

Hypsometer c 1897.

Hypsometer c 1897.

Hypsometer c 1897.

'Calcutta' flying boat under construction, Short's factory, Belfast, 1928.

Antarctic expedition of Admiral Richard Byrd, 14 March 1935.

Light Cycler PCR machine on display at The Science Museum, London, 2003.

Light Cycler PCR machine on display at The Science Museum, London, 2003.

Light Cycler PCR machine on display at The Science Museum, London, 2003.

Pye 232 radio, c 1928.

Vaccination kit, England, 19th century.