Division-III, pages 4 & 5 with information about: (1) The Bown's Chain Pulley Bracket for Dwarf bicycles from W. Bown, (2) The Challenge Chain Pulley Bracket and Detachable Crank from G. Singer & Co, and (3) The Signal Cyclometer produced by The Signal Cyclometer Co under the patent of M.D. Rucker & Boys.