these are just strips of film from a trailer. Whatever the aspect ratio is is corrected in projection with anamorphic lenses
as to "original release blah blah"
I don't see where he states they are from any original release prints, just that they are original film cels which is true, whether the film it was cut from is an original trailer (always these are from trailers) or a re-issue trailer
35 years ago I used to sell these and I still have a couple shoe boxes full of stuff somewhere. Maybe even a long comic box come to think of it
as to whether an original film cel or a re-issue film cel is worth more than the other, what difference does it make. It isn't a very collectible item in either case, just a fun collectible.
not worth much money, not useful for much other than projecting on a wall as you ooh and ahh