ACTION COMICS #241 CGC 7.0 CREAM TO OFF-WHITE PAGES. DC SILVER AGE - 1958. 1ST APPEARANCE OF FORTRESS OF SOLITUDE (FORT SUPERMAN). JERRY COLEMAN AND OTTO BINDER STORIES. WAYNE BORING, JIM MOONEY AND HOWARD SHERMAN ART.The item "ACTION COMICS #241 CGC 7.0 1st app of FORTRESS of SOLITUDE (FORT SUPERMAN) 1958" is in sale since Friday, May 24, 2019. This item is in the category "Collectibles\Comics\Silver Age (1956-69)\Superhero\Superman". The seller is "charm-city-comics" and is located in Lutherville-Timonium, Maryland. This item can be shipped worldwide.