File:Sullivan-Dan-1970.jpg

Summary
Baltimore Colts guard Dan Sullivan, 1970.

Photographer uncredited.

Published in The Huddle, vol. 2, no. 12 (Jan. 17, 1971), p. 51. Baltimore, MD: Baltimore Football Inc., 1971.

Team publication of the Baltimore Colts, no notice of copyright in publication.

First published between 1929 and 1977 with no notice of copyright, public domain.

Scanned and digitally edited from a copy in his collection by Tim Davenport ("Carrite") for Wikipedia. No copyright claimed for the work, file released to the public domain without restriction.