Doppelfernrohr Voigtländer 7x50, Artillerie Kaiserliche Marine, Reichsadler, around 1916

Doppelfernrohr 7x50, produced in 1916 by Voigtländer Braunschweig for the Kaiserliche Marine.

This model, on the left eye plate, in addition to the Voigtländer Braunschweig brand, in fact bears the word "Art." abbreviation of Artillerie, while on the right plate, the 7x50 enlargements with number XXXX, and the acceptance mark of the German Navy consisting of the "Reichs Adler" and the "M" used from 1915 to 1945, especially up to 1935, date after which the German Navy adopted the eagle with swastika.
This binoculars has a "special feature" (Okularhemmung - Ocular Locking System), that distinguishes them from other binoculars used during the First World War, is equipped with a visual focal locking and memorization system on each individual eyepiece. Therefore, once the focal length has been found, it will be enough to rotate the knurled ring located on the eyepiece tube and position it on "0".

The vision is excellent and clear and all mechanisms work properly.

Voigtländer Braunschweig was created in Vienna in 1756, the company took its name from its founder, Johann Christoph Voigtländer and initially produced optical instruments, intended in particular for microscopes and other scientific equipment. Among the first creations were the Petzval type lenses, and others destined to become famous, such as the Collinear and the Heliar.

In 1840 he built the first lens for cameras, while in 1841 the first entirely metal daguerreotype was developed. He subsequently produced plate machines, built in a practically artisanal way.In 1849 the headquarters were moved to Braunschweig, Germany, where Voigtländer & Sohn was born shortly thereafter. In 1925 it was purchased by Schering AG. Voigtländer later oriented its production towards photographic devices accessible to all, and this allowed it to remain among the market leaders until after the Second World War.

In 1958 it was bought by the Carl Zeiss Foundation and in 1972 it was renamed "Zeiss Ikon Voigtländer". In 1973 the brand became the property of Rollei until the crisis of 1982.

At this point the brand was bought first by "Plus foto", which from 1980 marketed Voigtländer cameras produced by Ricoh and Chinon and then in 1995 by "Ringfoto", but this represents more than anything else a long period of darkness. Finally in 1999 the brand was reborn with the purchase by the Japanese Cosina.

In 1840 he built the first lens for cameras, while in 1841 the first entirely metal daguerreotype was developed. He subsequently produced plate machines, built in a practically artisanal way.

In 1849 the headquarters were moved to Braunschweig, Germany, where Voigtländer & Sohn was born shortly thereafter. In 1925 it was purchased by Schering AG. Voigtländer later oriented its production towards photographic devices accessible to all, and this allowed it to remain among the market leaders until after the Second World War.

In 1958 it was bought by the Carl Zeiss Foundation and in 1972 it was renamed "Zeiss Ikon Voigtländer". In 1973 the brand became the property of Rollei until the crisis of 1982.

At this point the brand was bought first by "Plus foto", which from 1980 marketed Voigtländer cameras produced by Ricoh and Chinon and then in 1995 by "Ringfoto", but this represents more than anything else a long period of darkness. Finally in 1999 the brand was reborn with the purchase by the Japanese Cosina.