hmm .... here's the quote from the page you linked:
I doubt that the writer of these lines ever saw or heard those sets.
Historically Speaking had only excerpts from three LPs, the remainder was previously unissued material.
Blowing The Cobwebs Out hade four complete LPs, however.
The Power Of Positive Swinging: never heard of this before. Maybe Campi had planned it, but I never saw a trace of this, and shortly afterwards the Verve/MPS reissues started.
And yes, 17039 and 17040 refer to the two discs of the same two CD set!