H46 Stratotone Mars

From the 1962 Harmony catalog:

Stratotone “Mars” cutaway model double pickup provide outstanding value in its price class. Hollow “tone chamber” construction. Ebonized maple fingerboard. Straight-line hardwood neck with built-in steel reinforcing rod. Finely finish in warm sunburst effect showing the grain of the wood. White celluloid bindings. Adjustable bridge. Hinged tailpiece.
Twin built-in pickups, each with tone and volume control. 3 position selector switch permits playing forward pickup for rythm – bridge pickup for take-off or solo – or both pickups at once, for maximum tone variation.

Early models (58-59) had the “long tail Y” on the headstock logo. Later (from 1962), were added black line and atomic logo on the pickguard.