PhilA wrote: ↑Tue Dec 04, 2018 2:49 pm
A shade of yellow is probably the most commonly specified color of silk in old fly patterns.
I have read in different texts that if the colour of silk is omitted you can be almost certain that it should be yellow of some kind. (That can be used as a hint for Stewart's Dun Spider).
I agree about how many different yellow shades Pearsall have produced. I had a spool of rich yellow with a marvellous 'sheen', aquired about forty years ago, that is empty by now. I should have left a few turns on that spool but it was such a pleasure to use it.
Regarding the photo of number 4 and number 5 in one post, I have to agree with Master Shuck. The paler yellow is number 4, Light Yellow, and the richer yellow is number 5, Yellow. When I compare what I see on my screen, (weak argument, I know) with my reference collection with numbers written on the spools and with my Pearsalls reference chart with authentic silk, that is my pompous verdict.
(My reference collection comes from EMTE in Vessigebro who was the Veniard wholesaler in Scandinavia and Margrethe Thomsen (EM TE) was the professional fly tying lady in Sweden, with close connection to Preben Torp Jacobsen).
I also wonder if there can be a difference in silk quality, and how it takes the dye and reflects the light, as part of explanation to how we see the shades. As I have mentioned before, I have or have had, a couple of spools with a much richer 'sheen' to them. These are/were number 5 yellow and number 19 hot orange but also number 12 Cardinal and number 13 Crimson. Those rich spools I collected from old stash in the early eightees. I wish I had more of them left.
dd
Edit, added 'and reflects the light'.