At the risk of relieving who knows what, what is it?
Any idea what the focal length is and what camera that monster in #3 fits?
"One of the greatest necessities in America is to discover creative solitude." Carl Sandburg
That driveshaft in pic #3 is an Astragon telephoto probably for 35mm or 6X6 format.
Maybe 500 to 800 mm range. I'm guessing f/5 or so aperture.
Nate Potter, Austin Tx.
That first one looks like an Calumet 8 x 10 with some sort of Schnieder lens. Can you post any other identfiers from the lens?