MFKZ (2018) has a reference to Captain America #1, Captain America's first appearance in 1941 : MovieDetails
Amazon.com: Captain America #337: Tom Morgan, Mark Gruenwald: Books
Captain America (1968 1st Series) 354
Captain America - Wikipedia
This Day In Comics on Twitter: "Steve Rogers, Captain America, first appeared in Captain America Comics #1 (December 20, 1940). https://t.co/sZrGWA2XGD" / Twitter
Captain America Comics (1941) #1 | Comic Issues | Marvel
Captain America Comics (1941) #1 | Comic Issues | Marvel
Captain America Comics #1 (Timely, 1941) CGC Apparent VF 8.0 Slight | Lot #91106 | Heritage Auctions
Steven Rogers (Earth-616) | Marvel Database | Fandom