Blank greetings card with envelope featuring:

'Chemical Philosophers of the present Day' (Joseph Priestley; Antoine Lavoisier) NPG D34359

© National Portrait Gallery, London

by James Caldwall (Caldwell), after John Opie, and after Jacques Louis David, published by Robert John Thornton

Chemist, renowned for his discovery of Oxygen. He also prepared various gases including ammonia, sulphur dioxide and carbon dioxide (hence the invention of soda water in 1772), as well as oxygen (1774). Priestley was a supporter of the French Revolution, and his radical social and religious views drove him to emigrate to America in 1794.

Card size: 125mm x 175mm

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