Warren Telechron, Inc., Ashland, Massachusetts, USA. Model Type A, serial no. 454, c. mid 1930's.

Restoring the movement.

The movement was not in as good a shape as the case. Coming from a sewerage plant, the brass had been somewhat corroded and needed a through cleaning and in some places where corrosion was severe a bit of refinishing. 

The normal procedures of dismantling and cleaning in an ultrasonic cleaner using a degreaser were followed.