Lot of three, all 1930s. Flip book is 1-3/4x2-1/4" produced and copyrighted by Moviescope Corp. from an extended series and this is "Series E." Contents are bw and feature actual film scene on one side from "Traffic Troubles" 1931 short, while other side has images of Mickey and Minnie dancing. Cover worn/aged and has coloring done to both sides and all the dancing images. VG and Scarce. The picture cards are 2.25x3" w/cardboard cover and opening that has celluloid picture insert. Each has neat action activated by slightest movement from thumb. Mickey is depicted playing an accordion on one and an upright bass on the other. Lt. aging to covers, VF with N.Mint images. All in this series are scarce.