After considerable thought, Mr. Duncan hit upon the plan of embossing, typewriter style, characters upon a metal plate. To do this, it was necessary for him to invent and perfect the Graphotype--a machine which writes names and addresses on metal plates almost as quickly as the same data can be written on paper with the typewriter. The first embossed metal plates were linked together in the form of an endless chain, similar to the rubber type plates. A new addressograph was perfected for printing impressions from these embossed metal plates. It was called the No. 2 Chain Addressograph. The Addressograph Company now had two models to sell. But, owing to the fact that the rubber chain addressograph permitted users to make changes and additions in their own offices, a greater number of machines of this model were sold than of the metal chain addressograph; because, with the latter model, it was necessary for the customer to send to Chicago to have his new metal links embossed with the graphotype for the changes and additions of his list. By this time, the Addressograph Company had established itself in its own factory in Chicago. Branch offices had also been opened in New York, Philadelphia, Boston and other principal points, and out of these offices was traveling a small but enthusiastic group of salesmen. Many firms, large and small, throughout the country were using and recommending the chain addressograph. And, crude as that model seems now, it was proving a wonderful time and labor saver in the offices in which it was used--and paying back its cost many times each year because of the fact that it accurately printed names and addresses ten times faster than was possible to write such data by pen or typewriter. A Card Index that Addresses Itself.