Oh dear - unless you have a record of the key numbers you have a big problem. The key numbers are not marked on the locks, they were only a little tag with the original keys.
If your car has it's original locks then you can apply for a Heritage Certificate from British Motor Industry Heritage Trust which will show the original key numbers.
http://www.heritage-motor-centre.co.uk/ ... index.html
You could probably then find a locksmith who could cut new ones from the code for you.
I guess you could try & find a complete set of locks with keys from one of the TR7 specialists, but then you have the hassle of changing them all over.
Hope that special place comes to light soon .......
Tony
<font size="1">1981 2L FHC Cavalry Blue - very original & not rusty!
1980 3.5L V8 DHC Regency Red - on the road again.</font id="size1">