Cosseboom was created by the American angler John C. Cosseboom of Rhode Island in around 1923, for use on the Margree River in Nova Scotia, Canada. The Cosseboom was originally tied with an olive green body, silver tinsel ribbing, grey squirrel tail wing, and a lemon-yellow  hackletied as a collar after the wing was applied, with a red head. The Cosseboom remains a very popular and effective Atlantic salmon fly and is used worldwide.