An interesting story appeared recently in “The AP World,”[5] giving some recollections of AP’s first field maintenance man, Royal (Roy) Bailey, then aged 71 and living in retirement in California. He still remembers the AP’s first printing telegraph machines, the article says; in fact, he helped make them, for he was a mechanic in the Morkrum Company’s factory in Chicago. When the Morkrum Company shipped the first machines to AP headquarters, Bailey went along with the machines to install and maintain them, although he remained on the Morkrum Company’s payroll. He eventually installed AP printers all over New York City and Connecticut, in Newark, Philadelphia, Baltimore and Washington, and in Chicago, St. Louis and Kansas City. He recalls that Morse telegraphers “used to groan when they first saw him.” The early teleprinters were hard to keep synchronized, Bailey further recalls, and copy boys had to check the speed frequently by sighting the striped motor flywheel through a tuning fork. (Many of those copy boys, he says, including Mickey Burt and Henry Elling, became AP engineers.) As the experimental and developmental work continued at the Morkrum plant, Howard Krum studied all types of start-stop systems and found that synchronous control was the basis of all systems. After experimenting with various ideas his thoughts turned to a plan to make the start of the receiving unit somewhat independent of the transmitting unit start, thus avoiding irregularities then present in transmitter start devices. This idea led to the construction of a permutation-code, start-stop system, using segmented commutators with rotating brush distributors at both transmitting and receiving units and a start magnet for each to control start-stop operation. In this system the transmitter start magnet, when energized, releases the transmitting brush, which immediately contacts the first segment to transmit a start pulse to operate the receiver start magnet; the five-unit-code signal combination follows and both transmitting and receiving units are stopped. The apparatus was applied to control the selecting and printing mechanism of the Blickensdoerfer typewheel typewriter and named the “Morkrum Green Code.” This improved apparatus soon replaced the Blue Code printer at Associated Press and other installations (see figs. 7 and 7A). In this connection the following additional comments of Mr. Bailey may be of interest:[6] In 1919 I installed the New York-Washington circuit, with drops at Philadelphia and Baltimore. This was a new type of printer using what we called the Green Code. This was considered an improvement over the old Blue Code, which meant a rearrangement of the receiving mechanism, but still the machines made use of a typewheel....