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
DescriptionPierre Louis Antoine Cordier.jpg
English: Portrait of the geologist Pierre Louis Antoine Cordier (1777–1861) by Ambroise Tardieu (1788–1841). From the Smithsonian Digital Collection.
This file has an extracted image: Pierre Louis Antoine Cordier (cropped).jpg.
The source for the date is this Royal College of Physicians page. It doesn't actually show the portrait, but it seems unlikely there are two distinct portraits. Since the artist died in 1841, the image is certainly free of copyright.
Licensing
Public domainPublic domainfalsefalse
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Pierre_Louis_Antoine_Cordier.jpg
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time
Thumbnail
Dimensions
User
Comment
current
15:41, 25 August 2017
1,000 × 1,491 (371 KB)
RockMagnetist
User created page with UploadWizard
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):