Isn't It A Pity

I have no info for this specific disc.
There's no indication if this is version 1 or 2.
However, the 'mono' designation is quite interesting. Is this an actual mono mix or is it simply collapsed stereo?

RECORDING HISTORY:

Specific recording details are not well known. Sessions for "All Things Must Pass" too place between May-October 1970 at Trident and Apple Studios.

See some additional details - here