Let's take Soul Station, AFIK Thruth is out there, as Fox Moulder stated,
there are:
1) an original mono pressing 63rd west label
1) a DG of the same pressing
1) NY label mono pressing
1) a stereo original 63rd west pressing
1) a stereo NY label
1) a stereo Liberty label
1) a "Finest jazz, etc..."
1) a Classics mono reissue
and probably some King or Toshiba reissues, maybe some bad Pathe...
Porcy, you forgot the test pressings.