Oh man, that may be a challenge. I assume that's on a 65 Canso? I had one for years and thankfully the letters were intact. However, I've seen a few guys looking for them. Hopefully someone has them for you.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars