More news about this rosette. It's not a bridle rosette. It's a HARNESS rosette (much too big to be put on a bridle where it would bang against the head of some poor horse!). Helene Sage who wrote the book, "Bridle Rosettes--Two Hundred Years of Equine Adornment" is a friend and she checked this rosette out and found that it was made by the Pfleuger Manufacturing Co. which made many rosettes back in the latter half of the 19th century. This one was, according to Helene, made for a specific family and was probably modeled after some of the family crests in Europe. It is indeed a mythical figure...probably similar to a Griffin. She says it's a very rare find. Cool!!!!
Thanks for your responses everyone!