Have they been listed there long?
The 16th September 1973 show that's on the vinyl has been released several times before, of course, although it looks like this one probably isn't sourced just by copying a previously release of it. I think the tape I have of the show has between song chatter that's cut out of the CD release (or at least the one I have - the 1988 CD on Revenge) so maybe that's on this one too, if they've gone back to a tape source.
The CD boxed set looks great! Surely it hasn't been release though (yet)? I haven't seen any reference to it anywhere else, and I want one! I hope it's a forthcoming release. Disc 3 and 4 have a fair bit of unreleased stuff from the Whisky on there, and it'd be great to get some live stuff I haven't previously heard, hopefully compiled with some care and attention to detail too.