Teenage Mutant Ninja Turtles #50 Treasury Edition. This is the Jetpack Comics & Games Exclusive Variant Edition limited to 250 copies.
Reproduces the full notes and layouts for TMNT #50, art reference note pages, typed story notes, and more by TMNT co-creator Kevin Eastman.
From the publisher:
A deluxe treasury-sized version of a classic! Presenting the landmark silent 50th issue of Eastman & Laird's TMNT. Part one of the epic 13 issue City At War Arc, reprinting the original layouts in fantastic, oversized glory... bonus pin-ups from Todd McFarlane, Walter Simonson, Eric Larsen and more!