The mystery ship from 19 fathoms / [Introduction by Frank G. Hoffmann] - AuTrain, Mich. : Avery Color Studios, 1974. - 44 p. : ill. ; 26 cm. LCCN: 74078431 Subjects--Topical Terms: Alvin Clark (Ship).Salvage--Michigan, Lake. LC Class. No.: VK1491 / .M87