thanks Oldschool, Myself and a few other wfl Br super classic owners have noted how many are generally towards 6" than 5 1/2" If I'm answering this wrong and you already know the answer the metal round piece is a bass drum mounted cymbal holder!
vintagemore2000:
Thanks for your input. I'm aware of the fact that the piece is a mount for a cymbal L-arm. What I'm trying to determine is whether it's an original WFL piece from the same era as the kit. As I previously mentioned, I can't seem to find it any catalog.