Signed in blue ball-point pen and numbered 3/25 (printed) on the label affixed to the reverse of the frame (there were also 5 artist's proofs), published by Kadel Willborn, Dusseldorf, contained in the original artist's specified silver metal frame
Lot Details
Signed in blue ball-point pen and numbered 3/25 (printed) on the label affixed to the reverse of the frame (there were also 5 artist's proofs), published by Kadel Willborn, Dusseldorf, contained in the original artist's specified silver metal frame
