Gibson Mandolin Tailpiece 20s – Nickel

I found this tailpiece in a box with old vintage parts years ago and just ran across it. It was in a plastic bag labeled Gibson mandolin 20s era. I looked at some online and it all looks right, save the brass screws, not sure if they are original but they are slot head screws. I looked at some of these on mandolins back then and they look the same to me.