![]() One innovation he made was to ramp up production and quality by switching away from the slow, labor-intensive manufacturing by hand to serial manufacturing. ![]() Even so, he was able to ride the wave of an expanding market for microscopes. With the outbreak of the Franco-Prussian War in 1870, Leitz had a rough time his first year. Leitz took over the company upon Belthle's death in 1869, and renamed it the Optical Institute of Ernst Leitz (Optischen Institut von Ernst Leitz). In 1865, Belthle hired an engineer, Ernst Leitz (1843-1920), who became his partner a year later. The company became known as the Optical Institute Kellner and Belthle. In 1855, Kellner died at age 29 of tuberculosis and his partner Friedrich Christian Belthle took over the workshop. Telescopes were the main product of the early company, but in the 1850s, microscopes became the principal product. The earlier Leitz trade catalogues give the date of establishment as 1850 but by the early twentieth century, Leitz publications put the date at 1849. ![]() Condition: Used, Condition: Extremely fine lenses, very good body.The company of Ernst Leitz had its origin in the Optical Institute founded by Karl Kellner in Wetzlar, Germany. ******* Pictures reflect exact product shipped, no items have been altered or repaired, see pics for details, payment due within 3 days from sale day, buyers outside US are responsible for custom fees, check and agree with shipping & handling fees before bidding, feel free to contact me for further info, feedback is appreciated, thank you for your visit. These Leitz binoculars are among the best 12圆0 models ever made. The leather case lid is unstitched on one side. Excellent crystal clear vision even at dawn or dusk. At 2 lbs-10 oz the binoculars are surprising light. Black enamel is worn around some edges, the faux-leather grip on the upper right hand side is missing. Post WWII German craft, serial number 555855 - (mid 1950s), lenses in extremely fine and sharp condition, scratch free/dust free/fungus free/haze free. ![]() Leitz Wetzlar 12圆0 Mardocit binoculars in their original hard leather case. Item: 263351947692 1950s Leitz Wetzlar (Leica) 12圆0 Mardocit Binoculars w/ Case West Germany. ![]()
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