Stereo or "SpectroSonic"?
It says Stereo on the jacket and label.
Strange, I though it was a mono recording. I just checked Fantasy Riverside cd box set. On the booklet they reported RLP 12-226 for mono and RLP 1174 for stereo, but no trace of Riverside RLP 1174 on Goldmine's book, nor I found a sold copy on eBay, but it's definitely on Riverside catalog. So it appears that it isn't very common in original stereo, if is it 'stereo'?
I've the Analogue's Monk Tenor Session vinyl set too, "Brilliant Corners" is a 'Spectrosonic', no 'stereo' on label and cover, 'Monk's Music' has 'stereophonic' on label and cover. The cover's artwork is pretty the same of original, as usual with these reissues. So I am wondering why they use the mono master for BC and the stereo one for MM.
Michel?