Original USA pressing on a Vertigo ''swirl'' label in a gatefold cover. Label variation: sides B and D do not have song credits after track lists. Compare to 666. Note: Side C has "Side A" printed on it. 666 insert included (see images) Letter insert (see photos) may only be for promo, but no other indication of promo on release. Letter is dated May 9th, 1972 and LP was first issued in February of 1972. Note in gatefold: "This work was recorded under the influence of "SAHLEP" On the back cover, down in center: Composed, arranged and produced by Vangelis Papathanassiou All compositions Copyright ©1970 by Vangelis Papathanassiou. Reprinted by permission.