Stephen Hawking's Time Travellers Invitation: Open Edition


PLEASE NOTE: Orders placed on this site between February 20th and March 6th 2015 will be shipped on March 9th.

Created by Peter Dean with the approval of world-renowned physicist Stephen Hawking, this poster is part of a real time-travel experiment.

Professor Hawking devised an ingeniously simple experiment to prove whether time travel to the past was possible. He held a reception for time travellers, but didn't publicise it until after it had happened. This way, only those who could travel back in time would be able to attend.

The success of this experiment depends entirely on the invitation poster being seen by time travellers. 

This is a screen-printed poster created in an open edition with a choice of two colours, smoke (grey) or bright citrine (yellow/orange). It has been created from a very high resolution scan of a letterpress printed version and so maintains the same Victorian style and steampunk feel as the limited editions which are available in silver on black and black on handmade paper.

Buyers of this print may help to prove that time travel is possible.

"I'm hoping copies of it in one form or another will survive for many thousands of years. Maybe one day someone living in the future will find the information and use a wormhole time machine to come back to my party, proving that time travel will, one day, be possible."

Stephen Hawking

Prints are sold unframed. See below for links to ready-made frames.


Screen print, in either white or black ink.


The overall dimensions of the print are 14" x 18" (35.6cm x 45.7cm). Fits a standard frame size.


The poster is printed on 135gsm Colorplan paper (either "Smoke" or "Citrine") with a plain finish.

The poster reads as follows:

You are cordially invited to
Hosted by
To be held in the past, at
Gonville & Caius College, Trinity Street, Cambridge
Location: 52˚ 12' 21" N, 0˚ 7' 4.7" E
12:00 UT 28 JUNE 2009

Prints are sold unframed. This print is a standard size and there are ready-made 14" x 18" frames available (for example this 14" x 18" frame from Amazon USA or this 14" x 18" frame from UK Frames).

For a limited time, shipping to all destinations is free.

We take great care with packaging to help ensure that your print reaches you in excellent condition. Prints are wrapped in acid-free tissue paper and shipped in sturdy tubes with secured end caps.

We ship worldwide, using the Royal Mail for all UK and International orders. Depending on the destination, orders for multiple prints may arrive in multiple packages.

UK orders are usually delivered within two working days. International orders are normally delivered within 5–10 working days.




Our Being for the Benefit of Mr. Kite print has been greeted with acclaim from all over the world. Early buyers have also told us how much they love it...

“I just wanted to let you know how pleased I am with the print I just received... it is simply stunning. Magnificent job all around, and I will treasure it always.”

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