DescriptionSylvesterStallone - 1977.jpg English: Photo of SylvesterStallone at the Ken Norton - Duane Bobick boxing match in 1977. Date 1977 Source ebay
son-City-Daily-Capital-News-Jul,29-1977-p-2.jpg English: Advertisement for the movie Rocky (1976) Date 29 July 1977 Source https://access.newspaperarchive
Ana-Orange-County-Register-Apr,01-1977-p-102.jpg English: Advertisement for the movie Rocky (1976) Date 1 April 1977 Source https://access.newspaperarchive
range-County-Register-Apr,01-1977-p-102 (cropped).jpg English: Advertisement for the movie Rocky (1976) Date 1 April 1977 Source https://access.newspaperarchive
United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle