No other industrial company has been as significant for Wetzlar and its surroundings as the Optical Works Ernst Leitz. Thanks to the expertise of its employees and the outstanding quality of its products, Leitz evolved from humble beginnings into a global company. Their products hardly needed the label "Made in Germany." The names Ernst Leitz and Wetzlar have always stood for top quality and held the same significance worldwide as the German origin label. Rolf Beck, who has been with the traditional company for many years, recounts the fascinating history of the Leitz Works and, with more than 200 photographs from the company archive, introduces readers to the Leitz city of Wetzlar as well as the production site of the world-renowned microscopes, measuring instruments, binoculars, projectors, and ultimately the legendary Leica 35mm camera.