Help!! What is this box?

These cars are anywhere from 40-60 years old. In my teens(mid 80's), the cars that were 50 yr old then were 1920's, 30's and 40's. Guaranteed they had factory manuals and had to buy them. No reason nowadays with access to copies/net to not have them.
Not trying to pile on the OP, but you better have as much info at your fingertips as possible.
Help me help you lol.
100% agree. Part numbers are critical if anyone wants to get into anything Mopar. All the hoarders use part numbers.

I'm willing to give someone a pass if they don't know what the hell a part is called. Everyone starts somewhere in the hobby. But that should be followed by that person getting a parts book and a service manual for that year.

Otherwise they'll have a hard time and will definitely pay more money for parts.