Variant version of first US mono edition, identifiable by: "EAR" symbol & VAN GELDER stamped in the dead wax; NOT deep groove; labels state: 33&1/3 microgroove Long Playing. Blue Note address: 43 West 61st, New York 23 written on back cover and on inner sleeve with illustrated details of 72 other LP releases under the heading "1939-1964 25 Years Blue Note The First Name In Jazz". Labels have ® beneath the “E” in “BLUE NOTE”. Recorded on February 25, 1964. Eric Dolphy performs by courtesy of FM Records. Printed in U.S.A. Tracks' duration not on release.