You might want to post thread in the wanted section to get one out of the correct car. Your title isn't likely to get the information you need. I don't know if you can still change the title of this thread bit if you can I would do a title like this.
HELP!! Is this Ac box correct for my 1972 Scamp?
191st day of 73 likely means this is a 1974 box but who knows if they are the same. The part numbers are newer than what I would expect for a 72 Scamp but Ma Mopar is the superceeding number queen.