In 1894 a motion picture device called Mutoscope was invented. It worked by flipping a series of cards printed with still photographs. The cards featured slightly different versions of the same scene shot in sequence, and viewing them in rapid succession created a motion picture. Basically, the Mutoscope was an arcade attraction, and the films, viewed by one customer at a time through a peephole, often featured racy material. Much later, during the 1940s, a company called the International Mutoscope Reel Company began publishing what it called mutoscope cards. These were never meant to be used in actual Mutoscopes—instead they were cheaply printed pin-up paintings that people bought as novelties. We came across a set at an auction site recently, and so you see some here. These are collectible today because the artists were luminaries such as Earl Moran, Zoe Mozert, Billy Devorss and Gil Elvgren, and we have examples from those four and others below.