File:PSM V58 D020 Photographic refracting telescope at potsdam.png

$File:PSM V58 D020 Photographic refracting telescope at potsdam.png$

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Summary

Description	English: Photographic refracting telescope at Potsdam
Date	between 1900 and 1901 date QS:P,+1900-00-00T00:00:00Z/8,P1319,+1900-00-00T00:00:00Z/9,P1326,+1901-00-00T00:00:00Z/9
Source	Popular Science Monthly Volume 58
Author	Unknown authorUnknown author

Licensing

Public domain	This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.	United States
	This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.