Adding the Yellow / Purple label which was pressed by PolyGram in West Germany.
Easy indication between Japanese and German discs. Japanese ones have clear ring and German ones have solid coated with color covering ring to hole.
Worth noticing, the back inlays that weren't printed in the U.S.A., the inside (blank side) of the inlays (faces up under the disc tray) all have the catalog number printed in the upper right corner.
Red label and Yellow / Purple Label issues were referred to as "target" labels. Warner Bros., Elektra/Asylum, Atlantic labels released these and they were manufactured either in Japan or West Germany. Supposedly, I read the different colors indicated different music genres.