The Yale collection holds at least the variant takes from three "versions" of Rachmaninoff's electrical recording of his 2nd Concerto on Victor M-58:
The early copy's takes are, in order: 3, 1, 1, 1,3, 2, 1, 1, 2, 2, 1.
The next group of takes (Yale's copy is a pre-war plain-label red seal) is the same, except for side 9, which is take 2.
The third copy kept is post-war, with the following takes, in order: 2, 2, 2, 1, 1, ? [ no number visible, but NOT take 2], 2, 2, 3, 3.
There may be other combinations of these takes, but I believe these are all the different takes seen.
I've seen dozens of copies (of the Rach.) in my dozens of years collecting and have learned always to compare takes on Stokowski's recordings of no matter what piece and no matter what pressing vintage. Many seem to have been issued with variants even from their earliest days whereas many others always seem to have the same takes.
The last time I found a Stoky variant take was only a year or so ago (though I can't remember what set it was).
Best wishes, Richard