Serial number on pocket watch database matches to following info (cannot guarantee it's accuracy, but I did use the serial number on the movement):

American Waltham  Watch Co.

Grade: Wm. Ellery

Manufacturer:WalthamQuestion Mark
Manufacturer Location:Waltham, MassachusettsQuestion Mark
Movement Serial Number:201419Question Mark
Grade:Wm. ElleryQuestion Mark
Model:1857Question Mark
Estimated Production Date:January 1866 - February 1866Question Mark
Run Quantity:1,100Question Mark
Grade/Model Run:211 of 958Question Mark
Grade/Model Total Production:201,307Question Mark
Size:18sQuestion Mark
Jewels:11jQuestion Mark
Movement Configuration:AdaptableQuestion Mark
Movement Finish:GiltQuestion Mark
Movement Setting:KeyQuestion Mark
Wind Mechanism:KeyQuestion Mark
Plate:Full PlateQuestion Mark
Balance Type:SolidQuestion Mark
Balance Material:SteelQuestion Mark
Adjusted:NoQuestion Mark
Railroad Grade:NoQuestion Mark
Case:VariousQuestion Mark
Run ID:3014.G278.18S2796.181857M2593.O3011.K3013.11J1681