Collier's was an American magazine that was founded in 1888, and ceased publication in 1957. Appearing weekly, there is an enormous amount of covers available. I picked twelve of them. In most cases it was not possible to retrieve the names of the designers, so here they are without any further comment. The image above was made at the Photofunia site, which has no copyright issues.
July 1910
November 1911
January 1914
May 1914
January 1922
April 1929
July 1929
July 1929
Copyright statement: posting lower quality magazine covers is deemed fair use.