Board advertising a special colloquium for Stephen Hawking’s Origin of Structure in the Universe, held at the Fermi National Accelerator Laboratory on the 22nd of April 1985.

This academic colloquium was one of Stephen Hawking's last appearances using his own voice.

In addition to photographs, all of the walls 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.