Blank greetings card with envelope featuring:

Sir Robert Watson-Watt NPG x31021

© National Portrait Gallery, London

by Walter Stoneman

In 1935 Watson-Watt, who had previously worked in the Meteorological Office and at the National Physical Laboratory, was appointed to lead a team to design practical systems of locating aircraft by radio waves. He developed a theory proposed by his assistant, A.F. Wilkins, for detecting aircraft with reflected radio waves; between 1935 and 1940 he supervised its transformation into the sophisticated radar defence system which largely contributed to the success of the RAF in the ability to locate incoming aircraft on the attack in all... more

Card size: 125mm x 175mm

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