History of the Typewriter

—221— on the present machine are arranged in rather novel places. Thus, the keys operating the change of colour of ribbon are placed outside the regular lines of keys at the top of the left hand side of the keyboard. The space bar of the machine is skirted by two other smaller bars, that on the left being the back-spacer, that on the right being the margin and line-lock release. Taking it all round, the No io is a handsome instrument, capable of doing the highest class of work, possessing all the good features of the older models, and incorporating all the improvements which the advance of public opinion has, within the last few years, found to be necessary. The No, 15 Yost. Were it not for the name, and the fact that the present machine, like its forerunners, uses a pad instead of an ink ribbon, one would never identify this instrument with those previously bearing the same name. The latest model has two especial features, viz. : visible writing, and it is a shift-key machine, the former of which the original inventor of the Yost did not apparently consider necessary, and the latter being a point which he specially sought to avoid, both in the Caligraph and in the machine to which he gave his name. However, the No. 15 Yost appears at an opportune moment, and must be considered on its merits. From the illustration, it will be seen that it presents an outline not differing very considerably from the others in the present class. The pad, by bringing the ink direct from the sharp face of the type on to the paper, must of necessity make for a much sharper and clearer cut impres- sion than where the type strikes through a ribbon. The Fig. 160.