Yale Twin Pindial
Manufacturer - Yale & Towne Manufacturing Co. Dates of Patent: 1872-1877
Number of movements: 2 Number of programmable hours: 72
A pin dial lock for vault or burglar proof safe. Each of the 2 dials was divided into 2 sections, day & night of 12 hours each.
One of the most beautiful and expensive Timelocks produced by Yale.