LETTERS COPIED AT HIGH SPEED
Copies are speedily made of correspondence and other business records with the aid of a new photographic duplicating machine. Through its use, a letter may be photographed directly upon a sheet of specially sensitized paper, requiring an exposure of only a fraction of a second, and developed at once in a portable darkroom. The instrument is especially designed for libraries, banks, insurance companies, and others requiring frequent duplication of card records and correspondence.
Copying Machine Works In 8 Colors
AN IMPROVED type of copying machine is capable of reproducing anything written with pencil, pen, or typewriter in as many as eight colors in a single operation. A gelatin material used in place of a stencil absorbs the inks used in making the original in sufficient quantities to reproduce hundreds of copies.