1936 Plymouth Codes P1, P2 DeLuxe and Business Models ORIGINAL Owners Manual. This manual contains operating instructions, maintenance and service specifications for this vehicle. For Plymouth De Luxe models after serial number 2,641,401, and for Plymouth Business models after Serial number 1,111,701. Fourth Edition, June, 1936. Good condition for its age with minor wear, blemishing and soiling [see photos]. Very rare and informative piece for Plymouth Owners that will display well.