Some scholars—in particular, Gordon Hendricks, in "The Edison Motion Picture Myth" (1961)—have argued that the lab began working on a filmstrip machine much later and that Dickson and Edison misrepresented the date to establish priority for reasons of both patent protection and intellectual status. In any event, though film historian David Robinson claims that "the cylinder experiments seem to have been carried on to the bitter end" (meaning the final months of 1890), as far back as September 1889—while Edison was still in Europe, but corresponding regularly with Dickson—the lab definitely placed its first order with the Eastman company for roll film. Three more orders for roll film were placed over the next five months.