Wiper Arm Identification - A/B/C Body?

Trying to figure out what these came off. Are they even Mopar and if so, which body style?

Thanks!

doesn't the "A" identify them as "A"-body?

don't know what year they changed the "lock tab" to the "lock lever" ??

Could be I guess. I have a set of 69-70 B-body arms that have "15" stamped in them. The E-body arms don't have anything stamped AFAIK.