THIS IS A HEAVY FILM, A CLEAR ACETATE, 8.25" X 11.75". ESSENTIALLY A TRANSPARENCY, --JUST THE BLACK LINE WORK, NO COLOR. CIRCA LATE 1950's TO EARLY 1960's, THIS INTERESTING VARIANT OF THE CLASSIC 1959 SILVER AGE COVER PROBABLY ONLY APPEARED IN THE PORTUGUESE-LANGUAGE MARKET, IT'S AN AMAZING COVER.