
3 1 c m
40cm
actual image size: 32cm x 23cm
Description
In spite of being slow to use, the Mignon was immensely popular and survived until the 1940s. It was invented in 1903 by Dr Friedrich von Hefner-Alteneck and made by the electrical company aeG. A metal type-sleeve shifts and rotates in response to the movements of a pointer over an index tablet marked with the letters of the alphabet. When the required letter has been selected, a single key is presed to make the impresion. A second key gives spaces. The type sleeve and index are instantly interchangable for different character sets.
Image Details
Image Ref.
10233892
© Science Museum / Science & Society Picture Library