Here we have an unrecorded variant of the Two-Tone Damasked John C. Dueber, OT3L-A. My NAWCC Data Base lists these at a total production of 200. As I have this example which is earlier than the listed Serial #'s & have come across one other being sold on E-Bay, this brings it to 202 known examples. 

Serial No.968175. Manufactured 1894. Correct 'Moon' Hands & Single Sunk, 'Circle' Dial. Possibly the Original Case, a Wadsworth, 20 yr., (Ships Wheel),  Screw Back & Bezel, Gold Fill, Engraved Back Case, (being that there are no extra case screw marks, it is likely original to the movement but there is really no way to be certain as most movements & cases were sold separately & Cased by the Local Jewelers). Unlike the "Special Railway" 2-Tone's this Model has Blued, instead of Gilt, Screws & a Nickel, rather than Gold, Register. 
Great Timekeeper (might loose 30 sec's in 3 or 4 Days). 
This being Number 13 in my Hampden Watch Collection.