Alex, Congratulations. The FF85-3 is a very nice rod.
As for the model years. There is a good chart that was published in "the fenwick book" and captured here:
viewtopic.php?f=2&t=499I don't know why this didn't make it to the Wiki Page.
https://wiki.fiberglassflyrodders.com/wiki/FenwickWithout pictures, the second rod is a bit of a guess, but I am thinking it is in the later Fenwick fiberglass rods in The early 1980's or in the Fenglas period (late 1990's).
If you can get a copy of the Fenwick book by Victor R Johnson Jr, for a reasonable price, it's worth picking up.
Does anyone know if you can still buy this in electronic form from the publisher?