The ACME Novelty Library, Number 18 1/2 (2007) (No. 1 of 175) (signed)
Number 18 and 1/2 of The Acme Novelty Libary series contains a series of large prints, each a reproduction of one of the four New Yorker Thanksgiving covers published on November 27, 2006, as well as a fifth print. And other stuff. Limited to an edition of 175, this is number one(!).
Also shown below are Chris's concept notes for the Thanksgiving covers.
This thing is LARGE.
Here's what it looks like opened up....
Preliminary sketches for Thanksgiving covers (front)
Preliminary sketches for Thanksgiving covers (rear)