File:ZeissMark1.jpg

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ZeissMark1.jpg ‎(300 × 383 pixels, file size: 49 KB, MIME type: image/jpeg)

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Description	The world's first planetarium projector, the Zeiss Mark I, in the Deutsches Museum in Munich, 1923.
Source	International Planetarium Society, accessed 10/11/08
Date	Oct - December, 1923
Author	Unknown, presumed to be a 1920s German photographer
Permission (Reusing this file)	See below.

Licensing

This work first published in 1923 is anonymous or pseudonymous due to unknown authorship. It is in the public domain in the United States, as well as in countries and areas where the copyright duration of anonymous or pseudonymous works is 100 years since publication or less.

This image may or may not be suitable for copying to Commons, depending on its copyright status in the country of first publication.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:10, 2 January 2024		300 × 383 (49 KB)	Jrissman	This photo has entered the public domain, so we can restore the larger-size version of this photo.

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Planetarium