Which 1975 medal is listed among Stephen Hawking's awards?

Which 1975 medal is listed among Stephen Hawking's awards? The answer is the Eddington Medal.

Hawking received the Eddington Medal in 1975, jointly with Roger Penrose. The Royal Astronomical Society awards it for investigations of exceptional merit in theoretical physics, especially work connected with astronomy and gravitation.

The award reflected Hawking and Penrose's influential research on singularities in general relativity. Their work helped show how the mathematics describing collapsing stars could also illuminate the origin and large-scale structure of the universe.

A common mix-up is Hawking's other 1975 honour, the Pius XI Gold Medal. He later received several additional prizes, including the Maxwell Medal and Prize and Hughes Medal in 1976, so the year alone does not identify a unique award.