![Zeiss refractor telescope 40 cm for 5 meters focal length, built in 1935. Specola Vaticana Observatory, Castel Gandolfo (Italy Stock Photo - Alamy Zeiss refractor telescope 40 cm for 5 meters focal length, built in 1935. Specola Vaticana Observatory, Castel Gandolfo (Italy Stock Photo - Alamy](https://c8.alamy.com/comp/PF5NM7/zeiss-refractor-telescope-40-cm-for-5-meters-focal-length-built-in-1935-specola-vaticana-observatory-castel-gandolfo-italy-PF5NM7.jpg)
Zeiss refractor telescope 40 cm for 5 meters focal length, built in 1935. Specola Vaticana Observatory, Castel Gandolfo (Italy Stock Photo - Alamy
![The Carl Zeiss refractor built in 1910 with an equatorial mounting and... | Download Scientific Diagram The Carl Zeiss refractor built in 1910 with an equatorial mounting and... | Download Scientific Diagram](https://www.researchgate.net/publication/284480957/figure/fig4/AS:406049245941763@1473821092964/The-Carl-Zeiss-refractor-built-in-1910-with-an-equatorial-mounting-and-a-main-objective.png)
The Carl Zeiss refractor built in 1910 with an equatorial mounting and... | Download Scientific Diagram
![Lot - ZEISS TELESCOPE - 1917 Carl Zeiss Jena Astro 28 60mm Travelling Telescope (Reisemodelle) with Binocular Attachment and Tripod, original Lot - ZEISS TELESCOPE - 1917 Carl Zeiss Jena Astro 28 60mm Travelling Telescope (Reisemodelle) with Binocular Attachment and Tripod, original](https://image.invaluable.com/housePhotos/thomastonauction/93/415993/H0134-L41006765.jpg)
Lot - ZEISS TELESCOPE - 1917 Carl Zeiss Jena Astro 28 60mm Travelling Telescope (Reisemodelle) with Binocular Attachment and Tripod, original
![Zeiss 130 mm. refracting double telescope - Robert Ariail Collection of Historical Astronomy - UofSC Digital Collections Zeiss 130 mm. refracting double telescope - Robert Ariail Collection of Historical Astronomy - UofSC Digital Collections](https://digital.tcl.sc.edu/digital/api/singleitem/image/ariail2/2793/default.jpg)