This is a binoculars Adar 4x from Rodenstock Munich.
Company Rodenstock was founded 1877 in Würzburg / Germany and manufactured first barometer, lenses, scales and measuring instruments. Optical devices like binoculars were manufactured later. In 1883 the company moved to Munich.
During ww2 the company manufactured optical devices for for german Wehrmacht.
For his age has the binoculars a good condition (with traces of use, look at pictues).
Both tubes are a bit polluted, but you have have a sharp picture and a very good view.
This binoculars is a rarity and a must have for each collector.