Time-O-Matic Speed Adjustment Fix Washer

This is a small washer to go beneath the sliding lever and nameplate on Time-O-Matic model 3's to allow the screw to tighten the lever to the coil core and rotate the core without loosening.

The original design (which is quite silly) relies on a split washer and proper tension being just right to allow the core to rotate without unscrewing the screw from it. This washer takes up the void in the main body so you can just use a flat washer and tighten the screw without having to worry about tension.