Five Tom Swift Hardcover Adventure books worth over $500.00. Includes Victor Appleton's 1930 Tom Swift and his Big Dirigible; 1912 Tom Swift and his Great Search Light; 1924 Tom Swift and his Great Oil Gusher; and finally, 1917 Tom Swift in the Land Of Wonders (Worth the most). All for one price. One additional book-1912 Tom Swift in the City of Gold to be included in the group.