A. W. Waltham 19th Century Silveroid Pocket Watch (c. 1881)

This is a Model 77 (referring to the first year this movement was manufacturer - 1877) Silveroid Size 18, Full Place, 11 Jewel Pocket Watch with Expansion Balance.  The movement is referred to as Wm Ellery.  Wonderful little watch, keywind, key set and has been serviced recently.