I found this in my 'archives'...
<div class="ubbcode-block"><div class="ubbcode-header">Quote:]Geo and Don
Pete Groh here, Ellicott City, Md I get the TR digest and saw your question on keys, FS series. The blank you are looking for in Curtis, UN 18; Taylor & Dominion S71B; Ilco BR16.
I cut key by code, cost is $10.00 each; un-cut american key blank; $4.00. I also have the orginal wilmot breeden keys, letters/numbers stamped on same. Cost is $15.00 each.
Keys can be located in old locksmith shops, hardware stores. I have found the key also in Farm type Feed stores. The key is also used on early Volvo's. If your travels take you to Phoenix, try Todd's as below. I have a web page at
https://britishcarkeys.com
If you order from me, make check payable to Pete Groh.
Hope this is of some help, Best regards and happy holiday. [/QUOTE]
I've purchased keys from both Pete and George -- both are doing a real service to our hobby.
P.S. That message is 6 years old so the prices have probably changed.