Home comic book Detective Comics #421🔍 Detective Comics #421Grade4.0$20.00 In stock Detective Comics #421 quantity Add to cart SKU: ITM755947 Categories: comic book, raw Tags: bronze age (1970-79), superhero Additional information Grade4.0Related productsAction Comics #284 $20.00Add to cartAction Comics #262 $20.00Add to cartJourney Into Mystery #117 $70.00Add to cartFantastic Four #056 $45.00Add to cart