Tailpiece used on the early 425, 450, 460, etc. with the standard 6-saddle bridge and the later iterations of these guitars that used the floating bridge.  We've made a slight improvement to the original: we've added elongated mounting holes so you can adjust the position of the tailpiece.  This is particularly important as these tailpieces were inconsistently installed at the factory and sometimes improperly positioned for correctly setting the intonation.
 
Mounting screws are included.