1908 Trippensee Tellurian

Pre-1923 (Trippensee relocated from Detroit), features a 3" Rand McNally Globe with Trippensee cartouche (printed, not added later). Earth is spun by engaging the improved-upon, gear-driven, bevel and crown gears.

Data-plate reads 'The Trippensee Planetarium, Pat. U.S. Mar. 10, '08. The Trippensee MFG. Co., Detroit. Mich., U.S.A.'

Featured in The Smithsonian's National Museum of American History.