Carl Zeiss 80mm telescope in case, Jena, Germany, circa 1920.

Serial number: 7413

E objective lens no: 4708 f = 120 cm

With original Zeiss fitted case and field tripod with rack and pinion elevating gear.

Telescope tube with counterpoise weight.

Lens cap and sunshade for objective.

Oculars:

30 x Huyghens’sches Okular f = 40 mm

67 x Huyghens’sches Okular f = 18 mm

96 x Huyghens’sches Okular f = 12,5 mm

171 x Orthoskop Okular f = 7 mm

Sonnenblendglas

Illustrated in:

Carl Zeiss Jena, Astronomische Instrumente astro 30, page 15.

CARL ZEISS JENA Altazimuth Telescopes for astronomical and terrestrial observations, Astro 31, pages: 12 & 13.

The Carl Zeiss Jena astro department was the historical astronomical instrument division of the Carl Zeiss company in Jena, Germany, established in the 1890’s it was renowned for producing telescopes, planetarium projectors, and other scientific instruments.