There are several variations of this fly. This specific pattern is from George Kelsen, from an 1887 article in The Land and Water weekly journal.
Hook: Mustad 3366, size 2/0 (I use this hook for practicing - I need more practice on this fly)
Thread: White 70 denier for the body, Black 70 denier for the wing and head of the fly
Tag: Silver oval tinsel and yellow floss
Tail: Golden pheasant crest
Butt: Black ostrich herl
Body: Pink floss
Rib: Flat silver tinsel
Body hackle: Grizzly dun, starting from second turn of the rib
Throat: Claret
Wing: Two strips of yellow goose shoulder or turkey and two narrow strips of red goose shoulder above
Head: Black ostrich herl
Enjoy,
Alberto