This is a NOS Mopar # 2533744. This is for cars with adjustable tilt steering wheels only. This is the turn signal cable that runs down the tilt steering columns of 64 Chryslers and a 64 Dodge 880. I have no idea what else it might fit.
I bought to see if it would fit my 64 imperial, and it didn't.
This is new old stock, but 55 years old. It is fully serviceable, but the case has a few microcracks that you would expect from a 55 year old part.