Miles Davis and the Modern Jazz Giants, 1969 Prestige reissue, PRST 7560, cover labeled ELECTRONICALLY REMASTERED FOR STEREO.
I bought this LP in a yard sale last year, for a buck, didn't notice the off-putting ELECTRONICALLY designation, and was really surprised to hear it, because this record is proper MONO, not a fake STEREO, and in fact the sound on this LP is remarkably good. I don't know how they managed to squeeze over 30 minutes of music on one side, and almost 30 on the other, but the result is top topnotch.
Correct me if I'm wrong, but this is probably the only way to get the whole December 24th, 1954 session on one disc. Grab one, if you see it. You won't be disappointed.