True, it only featured reprints of his stories (as well as some from Nighthawk/Hannibal Hawkes, the Trigger Twins/Walt and Wayne Trigger) with cover art by Alex Toth....but they did exist!
Johnny Thunder #1 (February-March, 1973)Johnny Thunder reprints from All-American Western #103 (November, 1948) with The City Without Guns and #125 (April-May, 1952) with Johnny Thunder's Last Roundup and Nighthawk reprint from Western Comics #42 (November-December, 1953) with The Gun-Fighting Statue.
Johnny Thunder #2 (April-May, 1973)
Johnny Thunder #3 (July-August, 1973)
Johnny Thunder reprints from All-American Western #122 (October-November, 1951) and All-Star Western #71 (June-July, 1953) with The Real Johnny Thunder and Battle For Mesa City, and Nighthawk reprint from Western Comics #75 (May-June, 1959) with Secret Of The Outlaw Timepiece.