Blank greetings card with envelope featuring:

John Tyndall NPG x13252

© National Portrait Gallery, London

by Lock & Whitfield, printed by Frederick Hollyer

Physicist; professor, and later Director, of the Royal Institution, his address to the British Association, 1874 marked a high point in controversies over science and religion.

Card size: 125mm x 175mm

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