Portrait of Dietrich Gruen, the founder of the Gruen Watch Company, which blended European watchmaking traditions with the efficiencies and innovations of American manufacturing. From:History of the City of Columbus, Capital of Ohio, by Alfred E. Lee. Volume II. New York and Chicago: Munsell & Co., 1892, opposite p. 289.
Gruen, Dietrich Portrait, n.d.r2WPadmin2018-08-08T00:38:00+00:00