Original 1947 Chicago Bears vs Green Bay Packer Lithograph. Certificate of Auth. For Sale

This is an amazing and rare 1947 lithograph I purchased from Vintage European Posters in Lahaina, Hawaii. Unfortunately, the store has since been destroyed by the fire in Lahaina. I have the lithograph in its original packaging and tube from the store. It has been in the tube since it was purchased. It also includes a certificate of authenticity (see picture). The size of the lithograph is 36.25 inches tall x 24 inches wide.
I included a note from a football historian which gives more background on the lithograph. (see picture)The 3 players that can be identified are:

Chicago Bears #44 – Frank Minini

• Chicago Bears #14 – Ed Cifers

• Green Bay Packers #23 – Clyde Goodnight.

• A note on the other possible Packer player...his jersey starts with a 2:

• #21: Ward Cuff (Back / Kicker)
• #22: Roy McKay (Back)
• #27: Jack Jacobs (Quarterback / Punter)
• #29: Charley Brock (Center / Linebacker)