Sessions Clock Co calendar assembly with center works complete

Description

An antique calendar assembly for replacing or repairing a calendar drive on a Sessions store clock or regulator. This consist of 6 parts so that you have the hour pipe with drive gear and the center shaft that came off of one movement. The center shaft is about 3.256 inches long. The inside plate distance is about 1.350 inches as measured shoulder to shoulder on the intermediate wheel here. The mounting post and the spring retainer screw and washer are included in case you are adding this to a Sessions movement that came without calendar drive.