Hey guys,
Thank you both for taking the time to look at my stamps!
I did some examining of my own, here's what I found.
The R64 is about 22-23 mm wide at the bottom, the area at top right does not have any regular pattern that would indicate perfs, also the area of the margin next to the "60" that's just below sticks out further.
So I'm thinking if the upper area was indeed perfs there would be more clear evidence below, but no sign of any regular pattern.
As for the R42, yes that wavy/jaggedness is from the scan, the cuts are clean. The bottom also measures 22-23mm.
After looking at these details I think I'm more confident that these are legit, I guess I'm the tiebreaker

Of course one day I'll find some nicer examples of both.
Again thank you both for giving your expertise!