PINK FLOYD The Dark Side Of The Moon (Extremely rare 1973 Japanese 10-track '4 Channel RM Sound' Quadraphonic vinyl LP with solid triangular labels manufactured by Toshiba-EMI, fully compatible with regular stereo systems. Housed in a unique gatefold picture sleeve variant with '4 channel' logo in the top right corner, plus 32-page lyric / biography / picture booklet, Japanese Quad insert and wide bronze obi-strip.