![National Watch Company “Pennsylvania Railroad Co.” Dial img](https://blog.pocketwatchdatabase.com/wp-content/uploads/2021/07/Pennsylvania-Railroad-Dial-Elgin-Closeup-1024x1024.jpg)
Pictured: Closeup. Double-Sunk “Pennsylvania Railroad” Dial by the National Watch Company, c.1872. [Elgin B.W. Raymond Movement #180892] While stringent specifications eventually dictated the type of dial that was approved for railroad service, no such requirements were enforced during the rise of the railroad watch in...