Found link to production numbers at Wikipedia- this is same chart once found with Ian Chadwick, have had no luck finding current Ian Chadwick page.https://en.m.wikipedia.org/wiki/Triumph_TR6_Trophy
Scroll down to production.
(Yes, Penny, I'll fix it. You are 1 of 922, not 932 built that year. Now go on out like a good motorcycle and play with your old scrap tires.)
I'm warning you, these TR6SR's are fussy.......