SIGMAR POLKE, Höhere Wesen befahlen: rechte obere Ecke schwarz malen!, n.d.
14,8 x 10,5 cm
offset postcard, here signed
extremely rare
published by Gebr. König Postkartenverlag, Cologne, Germany 
€ 780,- plus € 12,- Track & Trace registered EU mail

This card has been published as part of a set of 10 and was not as such signed. Nevertheless in combination with the René Block poster ‘Höhere Wesen befahlen: rechte obere Ecke schwarz malen!’ this signed postcard may be looked at as an authorization of both this card and the René Block poster.