SCIENTIFIC AMERICAN, New York, Dec. 12, 1914  The duo-tone cover is taken up with a comical print of the: "Motor-Driven Unicycle Stabilized by a Gyroscope". An inside page has a related article describing it, with much detail.
A terrific print showing how bizarre some early "inventions" were during the era when engine-driven vehicles were booming.
A great front page for display.
Sixteen pages, never bound, a library stamp in an upper corner, some lite staining and small edge tears, otherwise in good condition.