Blank greetings card with envelope featuring:

Sir (John) Ambrose Fleming NPG x165627

© National Portrait Gallery, London

by Walter Stoneman

Physicist and electrical engineer. Born in Lancaster, Fleming studied at St John's College, Cambridge. Whilst Professor of Electrical Engineering at University College London (1885-1926), he invented the Thermionic Valve (1904), which became widely used in the rapidly developing world of television, radio and early computing. Fleming was also a pioneer in the application of electricity to heating and lighting on a large scale. He was knighted in 1929.

Card size: 125mm x 175mm

Images are printed in their original proportions, within a white border.