My opinion would be turn of the century or a few years earlier. Nice job. thumbsup01
Is that a steel back or brass? Nice button though. I'm guessing it's from the early years of that house. 80's -90's. Real hard to date them, but someone who studied designs of the period may date it that way.
hey now thats what you need to identify buttons , great front and back pictures of them . thumbsup01 i agree with Coinnut , from that design it screams 1890's to 1910ish . definately a nice ornate button probably off a womans dress coat or something similar Jkress.