A woman tries the New IBM. 72 electric typewriter shown in London October 9, 1961 for the first time, has a usable speed of over 180 words a minute and uses a single element typing head smaller than a golf ball which contains all 88 characters of the keyboard. It has no typebars like the conventional machine and is fitted with a fixed carriage. The unusual typing head can be change in a matter of seconds for another bearing on a new head. The head is mounted on a carrier which glides along a cylindrical rod across the paper. As a key is struck the head rotates and lifts to bring the correct character into position for printing. Ribbon changing is simple by means of a clip-on ribbon cartridge which is mounted on the typing carrier. (AP Photo)