The ABR-1 Tune-O-Matic bridge was the only adjustable Bridge used on stoptail equipped Gibson guitars from 1957-1974. In 1974 Gibson introduced the Nashville Bridge. Since then, the ABR-1 has predominantly been installed on the Custom Shop and Historic models, and the Nashville on the USA line. For a detailed understanding of the 2 bridges see my prior blog post, What Is the Difference Between the Different Bridge Types In 2017, Gibson started using an ABR-1 on it’s USA Models, most notably the very popular Les Paul Traditional. As of this blog post, I see that Gibson is fitting an ABR-1 on models in both the “Original Collection” and “Modern Collection”, not only Les Paul, but also the SG and ES models. The first thing to know it that that your ABR-1 guitar bridge is the same one used on any other Gibson ABR-1. The difference is how your bridge mounts to the guitar. Faber® Has Multiple Upgrade Solutions The Faber® ABRH Bridge from our collection of “ABR-’59” bridges. Th