Historically correct voltage regulator

Thank you Sirs

I tried to classify them chronologically. Do you agree?

1969-1975. Black. "Z" shaped front edge. Yellow stamped lettering. Black connector. Two mounting holes.
PN 3438150 - 3755960


1975-1978. Black. Straight front edge. Green stamped lettering. Green connector. Three mounting holes.
PN unknown.


1978-1981. Silver. Straight front edge. Black stamped lettering. Green connector. Three mounting holes.
PN 3874520


1981-1987 (?). Silver. Straight front edge. Sticker with blue/white/red Mopar logo. Red connector. Three mounting holes.
PN 4111990