This is a wonderful late FL USA stamped 7 facing that plays excellently. I have trued and optimized this facing and tip.  The finish over most of the mouthpiece is very nice yet there is some staining of the plating on the table due to a reed left attached long term I imagine.  This piece plays in a compact and concise way with a very nice flat step baffle similar to late FL hard rubber pieces of the same time period.  It has a lot of complexity and a great buzz and depth to it. Tip size.105 and set up with an older traditional Otto Link Facing curve.