American Omnigraph of the Year 1890 Used to Learn Morse Code. Working

This rare device an Omnigraph,made by the Omnigraph Manufacturing Company of New York. It was used during the 20's to teach the Morse Code to new telegraph and radio operators. This is a spring-powered device, and has to be winded up with the big key that comes with it. The onmigraph is very well preserved and in excellent working order, being an exclusive and original piece. The omnigraph works by means of a cylinder composed of several aluminum disks with serrated edges. The edgest have patterns of dots and dashes "encoded"; as the motor runs, the disks rotate and a "finger" on a leaf spring follows the pattern on the disks, operating a set of contacts. The omnigraph makes then a series of different sounds that the learner had to write down continuously. This particular device has a wooden base with milled edges on with the different metal parts are screwed. The wood boasts a nice reddish color and a warm finish, and in one side we can see the remains of an old label with the name of the device (THE OMNIGRAPH), the manufacturing company and its address. The different parts of this instrument are made of three kinds of metal: black-lacquered iron, brass and aluminum. They all work perfectly, as softly and fluidly as the first day. The original patents for this device were issued to Charles Chinnock (1903 and 1904).The Omnigraph Manufacturing Company was founded circa 1900, and seems to have ceased operation circa 1931. This omnigraph is a witness to those times, a very special antique which still works and will delight every nostalgic lover of original pieces. Measurements: Width: 270 mm. Height: 145 mm.