The mention of telegraphy brings another name into this story, that of no less a personage than Thomas A. Edison. It has been said of this universal inventive genius that he has figured in some way in connection with nearly every development in the field of mechanical progress during the last half century; so it is not surprising to find his name written into the story of the typewriter. Early in the seventies Edison had a shop in Newark, N. J., and he tells how Sholes came there to consult with him concerning his invention; a natural thing for Sholes to do, for even in those early days the fame of "The Wizard" was nation-wide. Edison was able to give Sholes some very valuable assistance. Later on, Edison helped D. W. Craig, a former general manager of the Associated Press, in the development of a machine, built on typewriter principles, designed to facilitate the transmission of telegrams. Edison also did some typewriter inventing on his own account. His patent of December 10, 1872, is for an electrically operated traveling wheel device, which was the forerunner of the stock-ticker printing machine in use today. Of the twenty-five to thirty experimental models, built by Sholes and Glidden during the years from 1867 to 1873, only a few are now in existence. But though many links in this chain are missing, it is fortunate that the two most important ones are still preserved, the first and the last. The first model constructed by Sholes, Soulé and Glidden, now in the Smithsonian Institution at Washington (Patent of June 23, 1868), shows a machine so crude that it would hardly be recognized as a typewriter. A second model, also in the Smithsonian Institution (Patent of July 14, 1868), is of equal interest because it has been identified by Weller as identical with the first machine sent to him by Sholes for practical testing. This machine shows a great advance over the other. Both machines, however, have the up-strike pivoted type bar, a feature which afterwards became standard for many years in typewriter construction. The last model of the long series was the one shown to the Remingtons in 1873, when the contract was made for the manufacture of the typewriter. This model, now in the historical collection at the home office of the Remington Typewriter Company in New York, although a crude affair, judged by present-day standards, contains many of the fundamental features of the modern type-bar machines.