Signed in pencil lower right

Printer 2RC, Rome

As Guglielmo Capogrossi writes on the certificate of authenticity that accompanies the artwork, it is a "Artist's proof", marked lower left with the initials "P.A." and hand signed in pencil lower right. Initially conceived to be printed in 60 copies on the opposite side to that of the present P.A. numbered copy, the printer 2RC printed the copies in a vertical version placing the 2RC blind stamp lower left. Probably as a result of these events, Capogrossi gave up signing all the copies of the edition and only 12 of them were numbered and signed after his death by Costanza Capogrossi.