As far as I know, previous to Iggy's remix, there were 3 Raw Power CD masterings:
CBS CDCBS 32083 Austria (has burp, proper fade-outs and possibly best sound for Bowie mix on CD, maybe only beat by legacy remaster. I'm undecided at this point)
Castle ESSCD005 UK (has burp and proper fades, but not as good sound as above)
Columbia CK 32111 USA (no burp, early fades and doesn't sound as good as the above two)
The Columbia 476610 2 mentioned above by ziggy79 is Columbia's Austrian issue. Same as the Austrian CBS except for cat #. It even has the CBS matrix# on the CD, so no doubt the same mastering.