File:Guardias Rojos junto al palacio de invierno, otoño de 1917.jpg

Size of this preview: 800 × 537 pixels. Other resolutions: 320 × 215 pixels | 640 × 430 pixels | 1,024 × 687 pixels | 1,280 × 859 pixels | 3,007 × 2,018 pixels.

Original file (3,007 × 2,018 pixels, file size: 3.61 MB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description	Español: Manifestación de Guardias Rojos junto al Palacio de Invierno en Petrogrado.
Date	circa 1917 date QS:P,+1917-00-00T00:00:00Z/9,P1480,Q5727902 (published in 1921)
Source	https://archive.org/details/throughrussianre00willuoft
Author	Williams, Albert Rhys, 1883-1962
Other versions

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, 1930, 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.