This is an ocular made by Hensoldt-Wetzlar (a sub-contractor for Zeiss
during WW II ). Superb Zeiss 5 element ortho using the aspheric eye-lens. This design was imitated by Pentax in their .965 orthos. The eye lens has a greater curvature relative to the other elements creating a wide 75 degree field! Absolutely blew away my 18mm Ultima. Coatings are superb as is the glass.
This is the cell and elements only and you need to fashion your own barrel either for .965 or 1.25. The field stop is 20mm. This is easily done using a film container or other cylindrical parts.
Tack sharp! and Zeiss! $60.00 shipped.