Here's a Dueber Watch Case Co., 3-Hinge, Open Face Case. It's Gold Filled w/ a 25 yr. Guarantee, as well as having it's Original [matching] Case Paper.  

Front View. This is a Late Style Case {1900 & Later}. It's thinner & has a smaller Bow & Winding Ball than the earlier Cases.

Case Back. Engine Turned, w/ Hand Engraved Shield Design. Case has no Monogram & hasn't been Polished. 

With Front Lid Open. The 3-Hinge Design makes setting the Watch a lot easier & the Dust Cover adds protection for the Movement.

Back Lid Open, Showing the Dust Cover & the Case Label.

Original Case Paper, w/ Numbers that match the one's stamped on the Case {in this instance No. 6098353}. It also shows it's 14 Karat Gold Filled & Guarantee not to Wear for 25 Years. 

Side View, showing the Coin Edge Design & the thickness of the Crystal. An Excellent Case for one of my 1900 & later 18 size, Model 3's.  { The 1908, 21 Jewel, DR, John C. Dueber is the best movement for this Case. }. The Crystal has a tendency to pop out of the bezel, so I'll take it over to Jimmy @ Anderson's & have him apply a bit of  ultra-violet glue.  

Referred to as "A Notable Eccentric" by Friends in San Francisco it's no wonder I'm drawn to "Odd Balls", so here's another one: A 16 Jewel "Railway".  Manufacturing Date of 1890/91. Every   book & data base I know of shows only 15 Jewel Hampden "Railways" except for Pocketwatch Data Base & the Seller {who is quite knowledgeable & has a good reputation with me} who claim this one has 16 Jewels. Well, I'll get to count them when I change the Dial to a Mint SS, Circle Dial that I have. So there!  

The Dial though, is not the usual "Canton, Railway", Double Sunk Type. Instead it's a Single Sunk, "Circle" Dial [these have been documented on "Springfield, Railways"] & the Hands are Wrong. "Railway's" came with Fluer de Lis Hands. The usual Font Style for the Double Sunk Dials was "Old English" but Formal Script has also been documented. I'll replace this Dial w/ a Mint SS, Circle Dial I have, or I can swap Dials w/ a Non-Running JC Dueber movement, which has a  Double Sunk, "Old English" Style Dial. The Seconds Hand is obviously Wrong as it's Gilt, so it'll be replaced forthwith. The Hr. & Min. Hands should also be replaced. Some "Railways" have been documented with "Crescent" & "Morning Glory" Hands {which are easier to obtain} & I might use these if I can't find "Fluer de Lis". Update; have acquired a nice set of "Crescent" Hands, so I'll try these.  
                                                                                                                                                                            

It seems I've acquired the type of Dial & Hands usually found on the "Railways" so I'll be fitting them on this Movement. The Dial is a near perfect, Double-Sunk, Roman, 'Gothic' or 'Old English' Font Style & the Hands are the 'Fleur de Lis' Style & still Brightly Blued.  I'd say that this is the Original Style of Dial & Hand fitted to this Movement when it was made [95% certainty].

Not Part of My Collection but I thought I'd add this "Last of the 17 Jewel, 18 size, John C. Dueber's" which were made with alternating serial Numbers along with the 21 Jewels {this one is Serial # 2527240}. The NAWCC Data Base has the 17J as One Run of 400 which only confuses the situation more {were they counted along w/ the 21J's or separately? Does this mean there were 800 17 & 21 Jewel models made, altogether? Or, 400 of each? Or 200 of each? & is your head hurting by now?}. 

This one has the Usual Spade Hour & Whip Minute Hands.

It has different Damasking than the 21 Jewel & I don't know if it has Ruby or Sapphire Pallet Stones & Steel or Brass Escape Wheel. It does have the Gold Screw-Set Jewels though.  

The Dials seem to be Identical. Another Double Sunk, Arabic Script, Dial w/ Red Marginal Figures.

This one's housed in a B&B, "Royal", 20 yr. Gold Filled Case, which is Engine Turned w/ an Engraved "Shield" Back, which has been monogrammed. No matter if there are 400 ea. or 200 ea. of these 17 & 21 Jewel John C. Dueber, ON3L-5P DR's ever made, they're damn rare now & I've only documented this one 17J & the one 21J {the one in my collection} since I started following Dueber-Hampden's 5 Yrs. ago. 

The Watch's are getting Newer! A 1908, 21 Jewel, 18 size, John C. Dueber [last of the 18s JC's], NAWCC Data Base has this Model as being One Run of 400 but more likely 600 because this one's serial # {2527513}is after the NAWCC Data Base's last Serial #for the Run. Also there is some confusion because these later Serial #'s were interspersed w/ John Hancock's {or vice-versa} which are basically the same watch w/ a different name on the Barrel Plate {much like the "Tank Badge Engineering" that was common practice on Matchless & AJS Motorcycles after WWII}. 

This one has a Double Sunk, Enamel Dial, w/ Arabic "Script" Numerals & "Closed" Morning Glory Hands. 

The Movement is Stamped; 2527513, Safety Pinion, Hampden Watch Co. Canton O., Double Roller, Adjusted to Five Positions as well as 21 Jewels & John C. Dueber in Gold/Gilt Lettering. Like the late model John Hancock's this one has Gold Screw Settings, Sapphire Pallet Stones, & a Steel Escape Wheel.  It also had Gilt Plate Screws though some of these have been replaced w/ polished nickel head screws. 

Currently Housed in a Dueber 4 Oz. Coin Case. An Open Face, 3-Hinge, Model that's quite Thick [& may be replaced w/ a Gold Filled Case later]. Another Rare Dueber-Hampden I'm glad to have acquired. As far as value goes, the 21J's get lumped in with the 17's so it's hard to tell. My 2012, "Complete Price Guide to Watches" shows a $300 difference between the 17's & the 21's in ExFn & by their rarity I can see them commanding a higher price.    

Hampden, John Hancock, 18 size, 21 Jewel, Hunter Model 4 [HN4L-A] in a Keystone 'Nickeloid' Open Face Case. 

Currently in an Open Face Case. Another Hunter Movement I'll have to find an appropriate Case for {see below}. 

A Model 4, late, Hunter Movement [the only John Hancock Hunter made] may have had gilt/gold screws when it was made but a lot of Hampden's have had these replaced, as time went by, w/ plain screws.

The "Canton" Double Sunk Dial has the usual Arabic Script Numerals that are found on Open Face "Canton" Dials. It has a repaired chip at 10 o'clock as well as some hairlines.

This is my Roman Numeral, Double Sunk, "Canton" Dial. I've never seen Roman Numerals on a "Canton" Open Face Dial & I've only seen a couple of others like this one [never on a watch though]. It's nearly Mint State & I actually bought this watch specifically for this Dial. Here below we have the "Comet" Hunter Case I've found. Needs the Front Hinge repaired but otherwise OK. I do have Two John C. Dueber Special's, as well as the "Santa Fe", in need of Hunting Cases as well so I'll have to see. Update; The John Hancock will have to wait. The Model 4, John C. Dueber Special fit perfectly.

Manufactured in 1908 this is the Last Type of the 18 size, Hampden Special Railway's. A 21 Jewel, ON3L-5P, DR. Adjusted to 5 Positions, with a Double Roller & marked so on the Back Plates as required by the new Railway Watch Timekeeping Standards. 

Watch has a Double Sunk, Montgomery Dial & Large Spade Type Hands. 

The Back Plates have a Nickel Finish rather than the 2-Tone that appears on many earlier Spc. Rway's. The 2-Tones were being phased out for a plainer, more "Bauhaus" Style of Movement.

Currently in a A.W.Co. Swing-Out, Nickel Case. 

The Montgomery Dial may very well be original to the movement as they came into being in 1904 & by 1908 they were offered, free of charge, as an option on all Railroad Grade Hampden's. 

By 1906 the recommendations for Railroad Grade Watches included being adjusted to at least 5 positions w/ Double Roller & having the same engraved on the Back Plates.  

A Grade 80, 17 Jewel, Adjusted, Hampden from 1893, Serial # 930286.

This Watch has the Single Sunk "Circle" Dial which was common on the 17 Jewel Models of this era.

Model 2, Hunter, Movement w/ Teske Regulator. This is a Gold, Circle Damasked, Two-Tone Movement, even though No G80's are listed as such anywhere that I could find [they obviously made at least one of these]. It appears that, again, I've gotten hold of  an Undocumented Hampden Watch. On close inspection the chances of this being a "One Off" have gone way up. The Gold Circle is well defined in some places but at the top the Gold seems to 'drift' Northward in a kind of 'smudge'. This may indicate the Gold was applied by an Apprentice or this was a Test Movement that Hampden Salesmen would take around to Jewelers to see if they had buyers for it, before committing the Factory to producing an entire Run. 

Came in a Philadelphia, Silverode, Swing-Out, Open-Face, Case but the Stem doesn't extract or engage the winding mechanism, so it's now housed in an Unmarked Salesman's Case.This fits right in with the "Test Movement" Theory. Unless I acquire another Dueber-Hampden Salesman's Display Case { Hinged w/ a Bow, preferably} I guess this one's found a permanent home.