Home comic book Sub-Mariner #057 CGC 9.4 View cart “Action Comics #284” has been added to your cart. 🔍 Sub-Mariner #057 CGC 9.4 Grade 9.4 $400.00 CAD In stock Sub-Mariner #057 CGC 9.4 quantity Add to cart SKU: ITM883178 Categories: comic book, graded Tags: bronze age (1970-79), superhero Additional information Grade 9.4 Related products Action Comics #251 $30.00 CAD Add to cart Journey Into Mystery #122 $50.00 CAD Add to cart Action Comics #282 $20.00 CAD Add to cart Journey Into Mystery #120 $55.00 CAD Add to cart