Rosborough, Polly - Nymph Collection (25 Flies)For sale here is an exceptional set of 25 nymphs tied by the noted Oregon tyer and author, Ernest Herbert "Polly" Rosborough (1902 1997). Rosborough, a respected innovator of dozens of original patterns, many represented here. Dated 1980, the page on which the flies are hooked provides pattern identification and size for each of the mostly unused flies. A very historical and fine collection of Rosborough flies.