Doctor Who Magazine #241 (31st July 1996)
Pg. 18 Out of the Tardis - Jon Pertwee interview
What is your most treasured Possession?
I should think probably this ring. The coin that you see on it shows Athene, the owl goddess of wisdom. A roman sailor came across this coin - obviously somebody from Greece had come to Rome and used this coin - and he thought, "That's nice, I'm going to have it made into a ring,"and then he took it to sea with him, and kept in in a little pot. In about 1958 I was diving and found this wreck, pulled up all the amphora - we also found the stock of the anchor, so we were able to see what the boat was. and date it to about 55AD from the insignia on the side - and in one of the pots I found this ring, from the poor bloody sailor who had obviously drowned. I gave it to a man called Silver Douglas, a jeweller, who did it up for me to make it fit my little finger and it's been there ever since - you can probably see in on a lot of the Doctor Who photos.
-End-
This is apparently a very sought after coin. I once saw one selling for $500 US so I recommend getting a reproduction and having a ring made. I bought a reproduction but it's sitting on a shelf because i haven't gotten around to making a ring just yet.
Visit this website to find a listing of companies that make replicas of this coin
http://rg.ancients.info/owls/replicas.html