Hi everybody! Im new to the forum (as far as posting anyway). not to long ago was board and decided to dissect my 70's norlin that was routed out for some 70's Dimarzio's way back before i got the guitar, it now has 57 classics i installed myself in early 2000's. i reused the rings on the guitar not really thinking they could be something. Years later i am obsessed with 58-60 Les paul burst and have a few books and web site info on the guitars and parts. So i was wondering if my research is correct and this could possibly be a 57-60 M69 ring? and if so what is it worth? I hope these pics come through.