Blank greetings card with envelope featuring:

John Tyndall NPG Ax17514

© National Portrait Gallery, London

by Lock & Whitfield, published by Sampson Low, Marston, Searle and Rivington

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.