I think he says the center of the crack is several inches from the mid-line of the windshield. The reference to the mirror seems to do with the level of the crack center.
When on the car, the main part of the windshield is on a slanted plane. The windshield crack location relative to the mirror changes depending on the viewer's position.
Now that is a crock of BS that you are perpetuating Jerry! Ferguson was sent specifically to look at the windshield and comment on it. He specifically confirms the position of the cracks and that there was a lack of perforation on it. There must have been a reason for this. The rest of the car was covered up and so he was able to concentrate solely at looking at the windshield that "first night". He spent an hour at the scene and the best you can come up with is that his observation was on the same plane! Yeah, the windshield is all one plane if you want to get technical!!! You can't even read his report properly! It specifically points out that the
cracks are 2 inches below at a point directly beneath the mirror and radiating outwards from there!! This correspondence can't be any clearer! You have the audacity to make an interjection and presuming something much different - trying to make up excuses for his report and why it doesn't match the crated windshield which could be a stock item from the Lincoln Factory with a hammer blow applied! Doesn't look like a windshield removed from a vehicle. It has the tape still around the edges. Likely a roped in model - not urethaned in my opinion.
Secondly, Ferguson mentions the fact that there will be further damage when they have to kick out the windshield during its replacement. That is a very true statement. So what further damage was done in that crated windshield provided as evidence? I have seen "urethane"d windshields removed and or the style that uses a "rope" to put in. If it is "urethane"d, the windshield suffers extreme enhanced crack damage during the removal/cutout process as you do put a lot of pressure on it during the removal process and the cracks spread all over! There will be evidence of cut urethane along its edges as well - none seen on the one in the crate. Even if it is a roped in w/s model, it has to be pushed out forcibly and cracks will propagate further cracking and rather quickly will
run all over in an enhanced manner. Glass is a hard surface and even a crack in your car's windshield can be easily enhanced/propagate with thumb pressure! Remarkably, the crated windshield looks like it was so carefully removed that there was no further damage other than original - it is in pristine condition (kind of like the magic bullet rolling off the stretcher gurney)! That would be an impossibility! He further dams his report by saying he comes back the next night unguarded, car uncovered, and proceeds to remove dried blood from around upholstery buttons with his knife! What was he the janitor?
It is pretty obvious to me that there were a lot of reports of holes in windshield floating around and at the time of introduction of the Ferguson document the secret service needed a corroborated document to state that the windshield remained
unperforated so as to disqualify/refute rumors that substantiated the reality of a frontal assault and a hole through and through it. It really was one big coverup. Maybe the bullet came from the lead car hiding in the shadows of the tunnel waiting for the assassination to take place. The frontal assault where the glass shards get reflected in the light at Zapruder Film Z-330 and show up in the film can't be disputed. The man in the front seat was wearing black and is not reflecting light like a piece of chrome would off a bumper - but glass spray would and does get caught on films periodically. Fortunately for the man in the front, his head was down below the dash and out of the line of fire. The driver at the same time moves his head towards the windshield to keep the spray from getting into his eyes! Looking at about 3 frames in the Zapruder film you can note his frontal movement! As the President's head goes back, his goes forward!
