In the spring of the following year, steps began to make coin operation, via a nickel slot, part of the mechanics of the viewing system. By autumn 1892, the design of the Kinetoscope was essentially complete. The filmstrip, based on stock manufactured first by Eastman, and then, from April 1893 onward, by New York's Blair Camera Co., was 35 mm (1 3/8 inches) wide; each vertically sequenced frame bore a rectangular image and four perforations on each side. Within a few years, this basic format would be adopted globally as the standard for motion picture film, which it remains to this day. The publication in the October 1892 "Phonogram" of cinematographic sequences shot in the format demonstrates that the Kinetograph had already been reconfigured to produce movies with the new film.