I can't speak for '69 Superbees, but I have a '70 N code Challenger that is not an R/T and it has 383 four barrel badges, and the Challenger R/T's got 383 magnum badges.
Maybe 69 383-4 Coronets were supposed to get the 383 four barrel badge, and R/T's and Superbees got the magnum one. Either a factory error or restoration error could have resulted in the wrong badges getting installed on some Superbees?