DescriptionJohn Collins Warren daguerreotype circa 1855 (retouched).jpg	English: Daguerreotype of Boston surgeon John Collins Warren, circa 1855. Image courtesy of the Harvard University Library.
Date	7 May 2019, 23:51 (UTC)
Source	This file was derived from: John Collins Warren daguerreotype circa 1855.jpeg:
Author	File:John Collins Warren daguerreotype circa 1855.jpeg: Attributed to Southworth and Josiah Johnson Hawes, Albert Sands derivative work: Begoon

This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: brighten midtones, min retouch. The original can be viewed here: John Collins Warren daguerreotype circa 1855.jpeg: . Modifications made by Begoon.

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• File:John Collins Warren daguerreotype circa 1855.jpeg licensed with PD-US
  • 2019-05-07T11:52:49Z Jeff G. 395x512 (96015 Bytes) Improved exposure & contrast with Photoshop Express
  • 2010-06-05T19:37:45Z MarmadukePercy 395x512 (169521 Bytes) {{Information |Description={{en|1=Daguerreotype of Boston surgeon John Collins Warren, circa 1855. Image courtesy of the Harvard University Library.}} |Source=Harvard University Library, Weissman Preservation Center [http://i

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