Has anyone ever seen this before?
A blank keystone badge over the grommet?
The paint has chipped there, it's not cracked.
On the other side is a pre serial keystone.
The drum is date stamped July 22 1958.
BB tone arm & red felt. it's a 6.5 x 14 BDP Ludwig Symphonic.
I have never seen this in a book or online.
Thoughts?