This photo was taken at New City Stadium (not yet Lambeau Field) on September 28, 1958, the first game of the season.
The Packers were hosting the Chicago Bears. A crowd of 32,150 saw the visitors spoil the opener as the Packers fell, 20-34.
Those are the Packers in their dark blue-and-golds.
The Bears' uniforms are almost unchanged to this day.
This was the second year in the Packers' new stadium, and it was a rough one. They limped to a 1-10-1 record (the lone victory came over the Eagles at City Stadium on October 26). As sportswriter Red Smith put it: "they overwhelmed one opponent, under whelmed ten, and whelmed one."
That cost head coach "Scooter" McLean his job, paving the way for the Packers to hire Giants assistant coach Vince Lombardi on January 28, 1959.