BEIN Broadsides Folio 2008 103: Printed in green, in reverse. Stamp: Atelier populaire, Ex-École des beaux-arts. From the Philippe Zoummeroff Collection of May 1968 Paris Counterculture.
BEIN BrSides Double Folio 2012 126: Printed in blue. Stamp: École nle. superieure des beaux-arts. From the Johan Kugelberg Collection of Paris May 1968.