File:Flag of Ohio.svg

Summary
Copied from https://commons.wikimedia.org/wiki/File:Flag_of_Ohio.svg

Licensing
"The author died in 1924, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 90 years or less.

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, 1923."