Illustrated sleeve featuring Superman, Flash Gordon, Green Hornet’s Black Beauty, Mandrake the Magician, The Shadow and The Lone Ranger. Original transcription disks were 16″ and were pressed at 16-2/3 RPM records, a speed used almost exclusively for spoken word content, particularly the “talking books” used by the visually impaired. For this reason, the inclusion of this speed was required on phonographs in some countries for many years.