CONVERTOR HELP

Any numbers either stamped into or painted on the converter?
I'm thinking that the one that starts with the P, the P preceding the part number may stand for Performance, but I can't be sure.
I have the Challenger/Barracuda restoration guide book(1967-1974) in front of me, and those numbers do not appear with any engine/transmission combination. If you have any photos of the converters themselves, I might be able to help.
Best I can do for now. Be safe all.