Indicia title is "Walt Disney MICKEY MOUSE IN THE WORLD UNDER THE SEA, No. 194. Code number is M.M.O.S. #194-488. Copyright 1948 by Walt Disney Productions. Credits for this issue based upon Alberto Becattini's "Disney Index - Dell Comic Books" Vols. 1 and 2 (Italy, 1992 and 1994). Apparently Mickey Mouse regular series #7?
Mickey Mouse; Goofy; the King of Atlantis; Count Drakova
Goofy invents a tank that will go underwater and fly. On a test run they find a huge air-filled undersea cavern with fields and a city. Their tank is stolen by Count Drakova, who somehow manages to render it invisible. Mickey and Goofy recover the tank and go to the city where they find that Count Drakova is threatening to make a man disappear if the King does not deliver a chest of gold to him.