I had thought that BHE grade Repros were machine engraved, others opined they were all hand engraved. I can't say positively one way or the other.
For the most part they were all engraved the same. But, with all things Parker we have learned to never say never -- and, once again, that was proved true in this thread:
http://parkerguns.org/forums/showthread.php?t=15589