This is the tone ring in my Flatiron Sweetgrass banjo: F P 223. Is this one of the Kulesh rings? This is an early 1990s banjo.
The early Kulesh rings were stamped AFP ( Anti-Friction Products), and the A & F were "stylized" together.
Here's an old archived discussion that has a lot of good info, including Richard Kulesh, Jr joining in
'Gibson Mastertone' 2 hrs
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