The ANSWER.. Will a Pfaff 1222 pedal operate a Pfaff 1222E? This is what happened in my case. We managed to track down the 053 pedal for use ONLY with the 1222E
Electric Foot Pedal Control Pedal + Power Cord Pfaff 1216,1217,1221,1222,1100,etc
Electronic Sewing Machine Type 1222E Foot Pedal, Bobbin & Arm | eBay
Instruction Manual, Pfaff 1222E : Sewing Parts Online
A picture of the plastic tray that slides in under the free arm to hold the extension table and foot pedal … | Pfaff sewing machine, Pfaff, Vintage sewing machines
PFAFF UPDATE | made by Julianne
Electronic Sewing Machine Type 1222E Foot Pedal, Bobbin & Arm | eBay