A wet-fly attractor Fling & Puterbaugh call Rio Grande King (23/30)

From The Basic Manual of Fly-Tying by Fling & Puterbaugh
a wet-fly attractor they call Rio Grande King

Hook: wet #12 - 14
Thread: black
Tail: long, hackle-feather fibers (traditionally Golden Pheasant tippet)
Body: black chenille
Wing: calf tail
Front Hackle: brown wet