Largest piece is a 3x7-5/8" translucent marbleized sheet of celluloid to which is held by a pair tin tabs on the back a large beautiful tinted real photo depiction of the "Dome Of The Travel And Transportation Building." There may have been a blotter pad or two originally affixed to the reverse. Next is 3.5" showing "American Legion" soldier carrying in his arms an outline of the state with text "Indiana To Chicago 1933." This relates to American Legion item #715. We have sold this button by itself numerous times in the $100 range. Next is 1.5" gold on black celluloid disc with tin reverse. No fastener. Unsure of its original purpose. Last is 1.25" beautifully tinted real photo showing "The Hall of Science." Tiny mark on bottom edge was dirt now removed and the piece displays Mint. Reverse has tin back with a cut out tab and we are unsure how it was used originally.