I don't agree with "easily identified" or that this somehow precludes a Mauser being found in the building, nor do I agree with "clear that Boone and Weitzman were simply mistaken" or that you can know that Craig "was lying".
You didn't seem to be aware that the MC had been filmed in situ before the overhanging boxes were removed, or that Alyea's footage captured the MC while it was still in it's original position. I thought this new information might inform your opinion, but apparently not.
I don't agree with "easily identified" John Mytton has "easily identified" the rifle in the footage as an MC and Walt would appear to know a thing or two about this particular rifle and he has no trouble identifying it. The footage isn't the best quality but there are moments when the rifle is clearly on display and recognisable.
It is indistinguishable from the rifle Day took from the TSBD or the rifle Day held aloft in the DPD, or the rifle in the National Archive or the rifle (bar the strap) in the back yard photos.
That it is indistinguishable from a Mannlicher Carcano means, by default, it is not a Mauser. The rifle filmed by Alyea is 100%
not a Mauser. That is a fact.
...or that this somehow precludes a Mauser being found in the buildingOf course it doesn't preclude a Mauser being found in the building. Nobody said it did. Finding the MC doesn't preclude a Howitzer being found in the building or a unicorn.
It's a meaningless point you're making.
But what it does preclude is a Mauser being found in the same location as the MC filmed by Alyea.
Boone never mentioned seeing two rifles and neither did Weitzman. As far as I'm aware, nobody reported two rifles being found. This appears to be some fantasy that
you are peddling. What evidence do you have that more than one rifle was found? If you don't have any, why do you keep bringing it up?
nor do I agree with "clear that Boone and Weitzman were simply mistaken"You must surely agree that they didn't find a Mauser in the same location as the MC filmed by Alyea. And that they didn't find one anywhere else. And that they didn't find two rifles.
The remaining options are that they were mistaken, they were lying or that every person on the 6th floor, including Alyea, was involved in some kind of staged event.
I favour that they were simply mistaken, Alyea's footage demonstrates this.
I think I can guess what scenario you favour.
that you can know that Craig "was lying".I assume he was lying as he states emphatically that "Mauser" was stamped on the barrel but the rifle filmed by Alyea was an MC. That is a fact. He did not see "Mauser" stamped on the barrel of the rifle filmed by Alyea, so I don't know what else to think.