Marvo 1.2 Go+

Golden Age Origin
Marvo 1.2. Go+ The Superboy of the year 2680 was a Sci-fi hero of the future who fought foes such as vest wearing grasshoppers. He is the son of one of the world's greatest scientists and while only 15 years old, Marvo has inherited his father's intelligence. The "+" at the end of Marvo's name is a status symbol, usually awarded only to ten chosen adult men which gives them access to use the "super-hypnobioscope" to learn while they sleep.

Golden Age Appearances

 * Superworld Comics #2-3