They're available from Mouser Electronics 882-MG22L-1/4
Thats just the dial you also need the 10 turn pot Mouser # 882-MW22B-10-50K You dont need the dial to use the pot. In my experience they arnt necessary but they do have a high rating on the "cool factor"
Thanks for the replies.
I wish I could find the dial that the Komets used or something similar. The problem with the ETIs are that they look like cheesy locks. The Komet ones are sleek and sexy. Hmmm. I will keep looking.