need to know how to look for a real abody 4 speed car

Here is a silly question and after searching the web site I could not find an answer.

I'm going to look at a 1972 340 4-speed demon. I know the letter "H" is for the 340 engine,
How can I tell if it is a REAL 4 speed car?

I may or may not be able to check the trans id pad- not sure if the guy will let me jack it up yet, as he is unsure he still wants to sell it.
The fender tag is there but I dont know what I am looking for.

Thank you,
Joe