
Old Blue Dun
Hook - Wet or dry 12-16
Thread - Primrose
Tail - Two or three rusty-dun hackle fibers
Rib - One strand of silk buttonhole twist – Coats and Clark’s 72-A primrose, size D; or full twist, tightly twisted
Body - Muskrat dubbed on primrose Pearsall’s Gossamer Silk, wrapped so that some silk shows through the dubbing at the tail end
Hackle - Blue-dun hen
SOFT HACKLES, TIGHT LINES: Old Blue Dun