Myriad of material related to this hybrid baseball and non-sports issue. Extremely creative and undervalued from Fleer Gum's test market archive used for competition purposes. 1) Extremely rare display box with "1964" hand written on bottom from archive. Overall EX+. 2-3) Two wrapper variations with minor glue remnants from archive books. Overall EX+. 4) Typed identification card from Fleer archive. 5) Partial set 26/36 with glue remnants on front that are difficult to see, but still there. Overall High Grade NM or better. Partial set does include Mantle/Berra and Ruth/Gehrig. Missing from the set are numbers 7, 10, 15, 19, 23, 26, 28, 31, 34 and 35. 6) Partial set 31/36 with glue stains on backs but the fronts are perfect. High Grade NM or better. Includes all three baseball Mantle/Berra, Ruth/Gehrig and Stengel. Missing from the set are numbers 7, 20, 28, 31 and 34.