Telechron, Inc., Ashland, Massachusetts, USA. Model Type
C, 1926, serial no. 7. Page 7.
Below is an example of the Telechron master clock Type B. The second photo shows a view
of the movement. The largest wheel in the movement is an epicyclical gear system that
matches the rate of the mechanical clock to that of the synchronous motor. Any differences
between the rate of the two is reflected on the large center hand and the cumulative
difference is registered on the small right hand dial up to five complete turns of the
large hand. This unit was a less expensive alternative to the Type A and was priced in
1920 at $150.00 ($3145.00 in 2010 Dollars) verses $400.00, ($8390.00 in 2010
Dollars) for the Type A.