Dey dial recorder, early 20th century.

 
Dey dial recorder, early 20th century.
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

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