1971 plymouth 340 duster orange crush promotion show car y93

I believe this car may very well be what they say it is. However I hope the owner can get final confirmation on the provenance of this duster, as this would save all the guess work. The car indeed has an unusual or what appears to be a pre production number. Ive had the pleasure of seeing this car up close and a little personal. It would be nice to see it finally confirmed. Ive got a few pics of this car through various stages of development. I may take my old school glossy photos to port hope some night.
ps It is said that their was an orange crush duster in a collection in the basement of the world trade centre, just another twist in this crushing mystery.