Seeburg Library Unit Stripper Plate that fits the 200LU1 and 200LU3.  Comes with mounting screws, and pivot screws are pre-tapped.  Unlike originals that were just modified plates these don’t have extra holes and stronger.  You will have to reuse your original brush pivots, brush holder and brush, as these are not available.  Pivots are very similar to coin mech mount studs found on arcade coin mechs.

Part Number 61-7132