Bidspirit auction | 2 Dr. Seuss Collaborator Proof

2 Dr. Seuss Collaborator Proof Lithographs - Dr. Seuss (Theodor Seuss Geisel) (American, 1904-1991). Group of two Collaborator's Proof lithographs including: ”The Sneetches (Sylvester McMonkey McBean), ” 1999. Editioned C.P. (Collaborator's Proof) 107/155 in pen along the lower left. With a certificate of authenticity. ”Happy Birthday to You!, ” 2000. Editioned C.P. (Collaborator's Proof) 107/155 in pen along the lower left. With a certificate of authenticity. With a metal storage case. (Prints, each) height: 10 3/4 in x width: 14 3/4 in. (Box) height: 2 in x width: 12 in x depth: 15 in. Condition: The prints are in excellent condition with no creases, tears, losses, or restorations. Light wear to the aluminum storage boxes.