This is a u-boat / empire marine binoculars from E. Leitz, Wetzlar Aviosept 7x50.
The binoculars has serial nr. 373841, the binoculars is in a good used condition (look at pictures).
The Aviosept binoculars were made between 1919 and 1931 and were very popular at german empire marine and later at Kriegsmarine.
The Leitz Aviosept models have Porro II prisms and a black colour coat.
The binoculars is in a good used condition, a absolute rarity.
If you look backwards in right tube you see a small crack at the border (minimal, does not affect the view), you have a sharp picture and a good view.
This binoculars is a real rarity, not to get any more and a must have for collectors (museum or showroom piece)