Original Item: Only One Available. This is a most precise optical instrument made by CARL ZEISS of Jena, one of Germany’s most notable optics makers of the 20th century. It is called a FIRE DIRECTOR and its purpose was to work with an INDIRECT FIRE SIGHT laying down fields of fire during the trench warfare of World War One.

For more details please reference Dolph Goldsmith's classic Maxim Machine Gun Book: THE DEVIL'S PAINTBRUSH and review pages 183 to 185.

Offered in virtually unused condition just showing a hundred years of accumulated dust etc a

truly rare WW1 German Machine Gun Accessory. Very well calibrated and complete with all German markings including Maker's information in the original leather transit case.