“The World a Million Years Ago” memorabilia, including two bronze figures from the 1933 Chicago World’s Fair, sheet music, a recording of the song, along with an audio tour through “The World a Million Years Ago” exhibit, presumably played on local radio stations, a DVD/CD set (left) with motion pictures and audio from the World’s Fair dinosaur attractions and also the song and audio tour, a set of vinyl sound effects records (that provided the growls, grunts, chirps, etc.) for Messmore & Damon’s mechanical prehistoric creatures). a plaster relief, a “composition” tar pit tableau (part of a set), Tru-Vue film strip of 3-dimensional photos and a “Big Little Book” (1938).