Invitation / announcement card for the release of Nico's "The Marble Index" album, held at The Factory on September 19, 1968. "Andy Warhol and Elektra Records Invite You to the Premier of The Marble Index, A New Album of Original Songs by Nico, to be played in conjunction with filmed portraits of Nico and Andy Warhol. At The Factor, 33 Union Square West, New York, on Thursday, September 19, 1968, at 8:30 P.M. Playing of the album will be begin promptly at 8:40. Wine, supper, and dancing will following. RSVP to Tinkerbelle."