File:Charles F. Tvrdik.png

Summary
Photograph of Charles F. Tvrdik that appears in the 1956 Nebraska Blue Book. (See here: http://govdocs.nebraska.gov/epubs/l3000/D001-1956.pdf) This image is in the public domain, as it was originally published before 1978 without a copyright notice in the 1956 Nebraska Blue Book on page 208. No copyright notice appears within this publication. See also: Public domain.