This is a u-boat binoculars from Carl Zeiss BLC 7x50 made between 1941-45.
The binoculars has serial nr. 45380 and was used by commanders of german Kriegsmarine at u-boats or war ships during world war 2.
The binoculars is in original and unpainted condition.
The eye lens have a small blue cleam, looks like they were coated at this timepoint of the war.
Right tube is a bit polluted, but you have a sharp picture and a good view (for this high age of the binoculars).
Ar left tube you see transparent flowers/marks, does not affect the view.
This binoculars a absolute rarity and a must have for each collector.