You could try Starbucks for a Pumpkin Spice fly line

I'd guess Cortland "Olympic," "Fairplay," "Silver Stream," or another of their trade-brands. An SA-made line comparable to their Aircel would be likely as well. The colors have varied over the years; that might be hard to match. Either is/was an excellent line with a meat-and-potatoes DT profile perfected in the fiberglass heyday just at the time of rods like the one shown in your pic. Most of the techno changes in lines since have been for performance traits of graphite rods and/or for fishing techniques not in wide use at that time. Not sure what the current versions of the Cortland or SA basic DT lines are named now. "Basic" does not mean "low quality low performance junk" as marketing conditions techno-babble geeks to think. Two or three such basic lines with basic reels and two or three basic fiberglass rods will do more high performance fishing at less cost then one over-specialized high-dollar fly line. As WF lines became more popular along with graphite rods, some of the basic line offerings were reduced to WF only.

Curious, what's wrong with the one shown? It doesn't look abraided or even dirty. If it is slightly stiff or coiled, it may relax just fine. Just extend the whole line in a moderate current and let it trail and wave in the current for a few minutes. Has it ever been turned around so the backing end becomes the fishing end?

Even if you can't identify the line for certain, you can get a basic DT line that will perform about as he one you have. I'd think that a 406 line, to use one make that gets good reviews here often, would be one example.

It might be one of the old Sue Burgess fly lines from back in the 80s.I had one of their lines with a similar colour.Good luck on finding one now.I know I have a lot of fly lines that came on reels that I don't have a clue about.I have one that I think may be a Teeny T-200.I may give it a try on an 8 wt. some day.

I would say a Cortland. I still have two or three a round here from when I was teaching for them and got all kinds and colors of lines from them. That color came at the time with kit outfits. So it had a number of names. I still use a wf12I that I made into a running line to use with a bunch of Rio heads. You could say I was being cheap, because I got the heads free and needed a running line to go with the heads, so I made one from that line to match rio's running line. I still have it but don't use it any more. Of forgot, if you like that line try a 333 dt. You should find that it match in every way except color. At least if the new owners didn't change the 333. Also standard Cortland colors where 333 ivory, 444 peach, 444sl green and laser yellow or some called it a florescent yellow. They also made some specialty line of different colors in all their 333 and 444. I still have some really crazy colors that they were trying out.