Scientific bet on Cygnus X-1 containing a black hole

In addition to photographs, all of the walls and surfaces of Stephen Hawking's office were covered in posters, customized framed gifts and artwork, which together represent over two hundred items. Their location shifted with some frequency, and some items were circulated in and out, but there remained a consistent sample from throughout his professional life. Some of the older items, having hung for many decades on several of his office spaces, show considerable fading caused by sunlight.

In addition to photographs, all of the walls and surfaces of Stephen Hawking's office were covered in posters, customized framed gifts and artwork, which together represent over two hundred items. Their location shifted with some frequency, and some items were circulated in and out, but there remained a consistent sample from throughout his professional life. Some of the older items, having hung for many decades on several of his office spaces, show considerable fading caused by sunlight.