P-152 Reproducer Arm Adjusting Screw

P-152 Reproducer Arm Adjusting Screw.  One photo points to the screw.  It is used to fine-adjust the stylus tracking on the cylinder record grooves.  This is a NEW item: only one made for this occasion.  A photo shows an Edison Early Standard RECORDER, but neither the Recorder nor the Carriage are included in this sale.  The adjusting screw can be used with either a recorder or a reproducer that have the adjusting arm.