Extraordinary Antique Professional Otto Seibert Microscope. Germany, Circa 1920

Extraordinary antique professional Otto Seibert microscope made in Germany circa 1920 in amazing condition. The microscope comes in its wooden storing case and comes with a complete accessory set, as indicated in the specification card. The set includes four original Seibert lenses and five eyepieces. The microscope mounts black-enameled metal body and brass mobile component parts; the two materials are in fine condition and look shiny and even. It also includes a micrometrical-adjustment mechanical plate, 4-lens revolving nosepiece and side-adjustment shutter. All the component parts work really fine, including the rack-and-pinion and focus systems. At the back of the microscope we can see the companys name and the devices serial number engraved in the metal: Otto Seibert Wetzlar 8086. On the other hand, the mechanical plate bears its manufacturers name engraved too, STEINDORFF BERLIN. The lenses and eyepieces that come with the microscope show the Seibert name at the sleeves; the lenses are labelled 3, 4, 7 and oil immersion. Aesthetically they are slight worn, but inside they are perfectly clean and enable a magnificent view of the samples. As for the eyepieces, they are numbered 1, 3, 5, 6 and 7; number 7 has been replaced by a x25 model. Number 1 is slightly damaged; it enables a correct view but there is a line at one side. Both the microscope and the accessory set can be stored in the original solid-wooden case, with lock and key set in working order. This extraordinary antique professional Otto Seibert microscope is a museum piece, worthy to belong to the best collector of ancient scientific treasures. Dimensions: Width: 6.3 in / 16 cm. Height: 15 in / 38 cm.Seibert Microscopes - History In the 1850s, Wilhelm and Heinrich Seibert were working in the famous Carl Kellers optical company in Wetlzar. Enrst Gundlach was working there too, and in 1859 he left the company to start his own workshop, taking the Seibert brothers with him. He had poor business skills and soon the business went bankrupt; Gundlach moved to England in 1860 and came back to Germany in 1865. He started another microscope company and again the Seiberts went with him, but in 1872 the business was again in financial trouble. The Seibert brothers, together with Georg Krafft, bought the company. Gundlach had to agree not to found another business in Germany so he moved to the USA. Meanwhile, the Seiberts and Krafft returned to Wetzlar; the company was known as Seiberts & Krafft till 1884, and as W. & H. Seibert until 1925. After the death of Otto Seibert, Leitz Wetzlar took over the business.