The Mary Sue directs our attention to co-creator Kevin Eastman's words on the sketch:
“Late in November 1983, Peter Laird and I were sharing a studio (our living room) in Dover, New Hampshire. One work night, in an effort to make Peter laugh, I drew a sketch of this character I called a ‘Ninja Turtle’ and threw it onto Peter’s desk. He did laugh, and did a version of his own — to which I needed to take it one step further, and did a pencil sketch of four different Turtles, each holding a different weapon — and gave it to Peter, who wanted to ink it in — and when he did, he added ‘Teenage Mutant’ to the ‘Ninja Turtle’ part of the logo, and we both fell off our chairs! “The next day, we both looked at the drawing, and decided that we really needed to come up with a story about how these characters came to be — and began to hammer out the story details. Deciding to make it an homage/parody to some of our heroes and inspirations (and dedicating it to them) we worked through the winter of 1983-84 and, after finding a local New England printer, we borrowed money from my Uncle Quentin and we printed the first 3,000 copies — premiering the book at a local Portsmouth comic convention May 5th, 1984.
“From that day forward, and for the next 30 years, the TMNTs became a worldwide phenomenon (cartoons, toys, and movies) that even to this day we still try to completely understand — and it all started with this drawing. …”
The current bid is for $6,500 but there are still 15 days for that to change. How much do you think the drawing will end up going for? (My guess is around 50K?)