No. 370, Important Notice, Edison Projecting Kinetoscopes, 1 June 1908.

In 1897, Thomas A. Edison designed and built the first Projecting Kinetoscope. Edison’s Kinetoscope was capable of projecting moving film images. Prior to the development of the Projecting Kinetoscope, Edison developed the 1887 Kinetoscope that allowed one person at a time to peep into a self-contained Kinetoscope to view a 35 mm strip of celluloid film 50 feet long (at 15 frames per second, the film ran to 15 seconds). The new Projecting Kinetoscope was based on some of the same technology as the old Kinetoscope, but incorporated a powerful light source, the “lamphouse,” that propelled images onto a screen. The Projecting Kinetoscope's construction incorporated a great deal of the essential mechanism of the modern movie projector.The following circular contains information pertaining to the Exhibition Model Two-Pin Movement Mechanisms and Underwriter's Model Two-Pin Movement Mechanisms for Edison’s Projecting Kinetoscope. Within the circular, information is provided to readers on how replacing the two-pin systems to one-pin systems could decrease the then persistent flicker prevalent throughout films of the time. The change to one pin systems could be made for $25.00 at the time. The circular describes special features of the one pin systems as well as a list of parts needed to change from a two-pin to a one-pin movement mechanism.Series two, producers, active after 190