There are 11 in the registry. Total production of the B body car was at least 112,000 according to the registry cars. Parisienne Convertibles would have been an expnsive car so I would suggest that no more than 5% of production. That would make 560 possible according to my logic. Anyone else can take a crack at it.
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Ray White, Toronto ON
Formerly - The one and only 1973 LeMans 454 "Astro-Jet"