Marvel Retro Classic 2012 Calendar. This official square format 2012 calendar features fantastic new images of the marvel comic superheroes from the past in a retro glance back to these one popular crime fighting superheroes. Each month features a classic retro style illustration along with a full sized calendar grid with pre-printed national holiday information and ample space for your own notes, dates and appointments to ensure fans of the Marvel Comics Superheroes of yesteryear stay organised through 2012!