Same seller is offering a 35/2, late model and scarce as such, for "only" $650 !!
Yikes ! He makes KevinCamera seem like a bargain outfit on these 2 lenses. His statements are almost identical on both lenses, and are without evidence. I would have severe doubts about any Canon RF lens production into the '80's. They were too busy with other things to produce lenses for discontinued products.
Also, my 35/2 is just a bit earlier based on serial number (431xx vs 446xx), and does not have any date coding, which started in 1966 with the 7s. He needed more "puff" to justify a very high price, so he made things up as he went along.
If the person conducting the auction is reading this, and cares to back up the statements with verifiable evidence, I will publicly apologize. I will have also learned something to add to my knowledge, such as it is..
Leica M3, IIIf RD ST, IIIa, Summar and Summitar
Canon 7, 7s, 7sz, P, VI-T, plus 10 from SII to IV-Sb2, + 14 50's for body caps
Contax IIa, IIIa, Rollei 2.8f, Ansco Auto Reflex, Crown 2x3, Speed 2x3, Busch 2x3, Mamiya G
So many cameras, so little time