LED ZEPPELIN Black Dog (Super rare 1971 original Japanese promo-only 7" on the blue Atlantic label with silver print, and a solid centre! The record plays the same 4:53s version on both sides, intended for radio station airplay, and hasNOT FOR SALE printed in Japanese and English. This rarity was documented in Samuel Ketenjian's excellent reference book 'THE SINGLES Worldwide Guide to Led Zeppelin 45's' way back in 1998, long before Discogs ever existed. Machine stamped matrices both sides, manufactured by Warner Bros.-Pioneer Corporation, Japan. Never issued with a picture sleeve - the record remains in Excellent condition, with clean labels and clear print - extremely hard to find)