Binoculars with blue optics in box, painted in a grey tank color on the right eyepiece is a brand of "rln" - workshop of Carl Zeiss in the city of Jena, serial number and ratio of 10 x 50. For binoculars attached to its original leather case with straps, also with stamp of the firm of Carl Zeiss. These binoculars were used by commanders of tanks and self-propelled guns, the issue is about 1943-1944.
In the case of binoculars found tag thrift store with a sale date in 1949.
Absolutely pristine condition.