reverie

This is probably an odd question, but this is the only book I'm missing from my Sandman HC's (I know it's an older print now):



I've seen it once, but I hesitated because all other 9 volumes have a black cover (under the slipcover), and this one was white. Is there a difference or did they just make Vol. 3 different for some reason? I'm curious if anyone else has this particular book and could shed some light. Thanks!