Very good condition, noting that one eye-piece has been replaced with a similar one from the same era.
This is a genuine monocular version of the Marine Glas mit Revolver, an innovative idea by Zeiss. A famous statue of Admiral TOGO features the binocular version.
https://tokyo-in-pics.com/wp-content/uploads/2024/01/IJN-Mikasa-Admiral-Togo-statue.webp
The revolving eyepiece lenses offer the choice between 5x and 10x magnification.
This example is in good condition
