
4 0 c m
36cm
actual image size: 28cm x 32cm
Description
Early Dey dial recorder, made in the USA. In 1880 Dr Alexander Dey invented the first dial recorder to track the hours worked by employees. In 1907, Dey's busines was acquired by the International Time Recording Company which later became IBM.
Image Details
Image Ref.
10204421
© Science Museum / Science & Society Picture Library