The Flash #117 - Here Comes Captain Boomerang! / The Mad-cap Inventors of Central City!
New York World's Fair Comics #1 - Superman, Zatara, Butch the Pup, The Sandman, Gingersnap : The Above Favorites and many Others! Also Interesting and Unusual Features, Stories and Pictures of the Fair : Mystery Thrills Adventure : 96 Pages in Full Color!