English: Philadelphia Eagles' running back Wilbert Montgomery rushing the ball against the Dallas Cowboys in the 1980 NFC Championship Game on January 11, 1981.
Date
11 January 1981 (Photograph was taken from the 1980 NFC Championship Game and re-published in 1986 for the Jeno's Pizza football card set)
This work is in the public domain because it was published in the United States between 1978 and March 1, 1989 without a copyright notice, and its copyright was not subsequently registered with the U.S. Copyright Office within 5 years.
Unless its author has been dead for several years, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (70 pma), Mainland China (50 pma, not Hong Kong or Macau), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See this page for further explanation.