This is the New York City comic Con variant which is believed to only be 500 copies ONLY! Last photo is the history on these books. You can more about it if you just Google it. Signatures are located on the inside of the front cover. The item "TMNT #3 CGC 9.4 NYCC variant Teenage Mutant Ninja Turtles Eastman & Laird signed" is in sale since Tuesday, October 20, 2020.
This item is in the category "Collectibles\Comics\Copper Age (1984-1991)\Superhero\Other Copper Age Superheroes". The seller is "gadgetstek" and is located in Rego Park, New York. This item can be shipped to United States.