Does anyone know the original turn signal flasher number that Ford used for the '56 year model cars?

I replaced my old one finally but I believe it has been replaced once before as its an Ideal Corp Heavy Duty Flasher 536 is the number and it went out on me Wed on my way home from my christmas party at work.  I looked up in my parts and illustration guide the number and it gave me a '62 revisement number of C2AZ-13350-A and I picked up two NOS motorcraft units but the flasher inside both boxes are a Wagner 223 Flasher and it flashes funky the first few flashes but once the flashing settles down it still way faster than my old flasher.

Kinda want to find the original number flasher and try it if possible otherwise I might just try to source a stock of Ideal 536 flasher units as this one worked great for me flash wise.

1956 Ford Fairlane Town Sedan - 292 Y8 - Ford-O-Matic - 155,000 mi