My first thought was the old airflo NW 2 hand skagit head, the length is about right. Then I checked my old one and it's more of a yellow color than peach and I think it was more like 34 feet in that grain weight range. You should remember that the early skagit heads were a lot longer than they are now, so if the line seems to have a skagit type taper but a Scandi length it is probably an older skagit head.
I think it's an Airflo Skagit NW head too. From their 2009 catalog: a 650 grain, ST9/10 (the heaviest listed), "pale peach". They don't list lengths, but my two Skagit NW heads are similar length. Good heads, just a little more delicate than shorter "beer can" skagit heads.
Keep your old line catalogs, because questions like this keep coming up.
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