I always believed, in modern times at least, that my uncle's first Pagoda was a 1964. The "evidence" I had was faded memories, along with a parts catalog "B" which is 1964, and some brochures from that time with his notes and pricing in them. It all could or should have pointed to 1964. I have a later parts catalog dated 1967, that says 230/250SL, but the older one has more notes in it, all handwritten. Based on VIN, looks to be October 1966 production, sold new in March 1967.
While in NY in June visiting my aunt, she gave me the following invoice. Well, was I surprised to find it was a 1967! I sincerely doubt there was a 3rd Pagoda.
For those in the know, note the 2% NY state sales tax (OK, stop laughing now), and the complete, handwritten invoice. Quaint!
That particular car was destroyed in a crash, and replaced with the 280SL purchased in late 1969, used--but barely, from a Simca dealer. That you can read about in Pagoda Style.