Stewart Company, as their usual work of building custom wooden auto bodies was falling out of favor at that time.
The M-1 was a conventional landing gear equipped, all-wooden construction, mid-winged monoplane with two tandem open cockpits, each of which had side-by-side seating for a total of four people.
It was powered by a 90 hp (67 kW) Curtiss OX-5 engine.
The wing spar was made of spruce with mahogany veneer.
Production was canceled with the onset of the Great Depression.