Home comic book Detective Comics #421 View cart “Journey Into Mystery #120” has been added to your cart. 🔍 Detective Comics #421 Grade 5.0 $20.00 CAD In stock Detective Comics #421 quantity Add to cart SKU: ITM819287 Categories: comic book, raw Tags: bronze age (1970-79), superhero Additional information Grade 5.0 Related products Journey Into Mystery #122 $50.00 CAD Add to cart Fantastic Four #056 $45.00 CAD Add to cart Fantastic Four #046 $135.00 CAD Add to cart Action Comics #256 $25.00 CAD Add to cart