I am happy to present my Improved Selmer Saxophone Model Chart.
Thanks, Douglas. I had seen online that my VII Paris tenor serial was odd- mine is 231xxx and appeared in VI lists. Your list confirms this. My tenor (bought around 30 years ago) is possibly a bit rarer!
1/ Pretty sure my early six has a "S Co" logo, for Selmer Compagnie. No 'i' , no "Cie" as we might expect.
2/ I must check, I may have an earlier tenor serial for your mk6 list.
<edit> my mistake, my "S Co" Mk6 tenor is M56208
3/ Nice work ;-)