A friend of mine from work is a huge Dr Who fan. Saying that is a gross understatement. He is the biggest Dr Who fan I know. So when he sends an email asking if anyone knows a Dr Who prop and what episode it’s from, I know it’s going to be good. He sends me a picture of a Tardis key he saw online. I immediately jump onto the internet and start doing my search.
I found two websites that had a good deal of information on Tardis keys. The first is The Tardis Index File. It is a wiki site that covers Dr Who, Torchwood, The Sara Jane Adventures and K9. It is updated and supported by its fans. I found a page dedicated to the Tardis key. The section of the page going into the history of its design I found very interesting. It gives a small history of the design changes as the various Doctors have changed it.