Seller: key-comics-boston (787) 100%, Location: Tewksbury, Massachusetts, Ships to: US & many other countries, Item: 253896571401 Up for sale is this beautiful graded copy of Flashback 19, which reprints Sub-Mariner Comics #1 from 1940. This comic itself is almost 50 years old as it was printed in 1974. All of my auctions always contain a surprise item.... this one is Sub-Mariner related. Happy bidding!!