The premiere of the completed Kinetoscope was held not at the Chicago World's Fair, as originally scheduled, but at the Brooklyn Institute of Arts and Sciences on May 9, 1893. The first film publicly shown on the system was "Blacksmith Scene" (aka "Blacksmiths"); directed by Dickson and shot by Heise, it was produced at the new Edison moviemaking studio, known as the Black Maria. Despite extensive promotion, a major display of the Kinetoscope, involving as many as twenty-five machines, never took place at the Chicago exposition. Kinetoscope production had been delayed in part because of Dickson's absence of more than eleven weeks early in the year with a nervous breakdown. Robinson argues that "[speculation that a single Kinetoscope reached the Fair seems to be conclusively dismissed by an 1894 leaflet issued for the launching of the invention in London," which states, "the Kinetoscope was not perfected in time for the great Fair." Hendricks, in contrast, refers to accounts in the "Scientific American" of July 22 and October 21, 1893, that constitute evidence no less "conclusive" that one Kinetoscope did make it to the fair. The weight of evidence supports Hendricks; as fair historian Stanley Appelbaum states, "Doubt has been cast on the reports of Kinetoscope's actual presence at the fair, but these reports are numerous and circumstantial" (Appelbaum does err in claiming that the device was "first shown at the Exposition"). Anschütz's Electrotachyscopes were exhibited in the Electrical Building of the Exposition as the "Greatest Wonder of the World" and were sometimes mistaken to be the long-awaited Edison machines.