File:Signature of George Washington Carver, from June 1922 Tuskegee Institute meteorological record.png

Summary
The entire page is in Wikimedia Commons here: https://en.wikisource.org/wiki/File:Tuskegee_Institute_Meteorological_Record_for_June_1922,_by_George_Washington_Carver.pdf
 * Other information:

The current JPG file is just a small portion of the form, containing Carver's signature.