Why would someone need to hack up a large section of the photo to remove a relatively small number plate and wouldn't someone just black it out with a pen/marker or use a sharp knife because it wouldn't be easy to tear out a very small section of photographic paper?
The top edges of the photo has water damage which has affected the entire top half of the image and if you look around the hole in the car, a similar water stain has started from the edges which means that the hole was there long enough to receive similar water damage and therefore the cut-out wasn't just done by the cops when the photo of Walker's house was discovered.
JohnM
This is an excellent copy of the photo that Mytton thinks is the exact same photo that the DPD photographed among Lee Oswald's purloined possessions at the Dallas police station on the night of 11/22- 23/ 63. Mytton thinks it's the same photo but the hole in the photo where the license plate would be isn't visible because the background behind the hole is light colored like the color of the 57 Chevy.
Clearly it's NOT the same photo of Walker's house because not only is there a hole in the photo where the license plate would be but there is also a very visible crease just to the left of the car. That crease ( caused by folding the photo) would be visible in the DPD purloined evidence photo if it was the same photo. And there is NO CREASE on the DPD purloined evidence photo. (see below)
There can be no doubt that Marina was correct when she said that there was NO HOLE in the photo when the FBI showed her a Walker house photo in early December. Obviously the photo was damaged AFTER the FBI displayed the photo to Marina.