Pocket Watch Case Makers’ Marks

The specific Makers’ Marks and pocket watch case characteristics of each representative specimen pocket watch case in this special sub-section are illustrated and documented in the corresponding research entry card.

This reference section documents observed pocket watch case markings from specimens associated with Seth Thomas pocket watches in the STFS Collection. It is intended as an identification aid, not a complete catalog of all marks used by each case manufacturer. The most powerful, complete, and accurate resource for identifying pocket watch case manufacturers remains the Pocket Watch Database’s Watch Case Identifier. When I was starting out, that resource was how identification of many pocket watch cases illustrated in this section was accomplished.

American (Waltham) Watch Co.

The specific Maker’s Marks and pocket watch case characteristics of this American (Waltham) Watch Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a shield containing A. W. Co., beyond the text and numbers engraved on this specimen.

Manufacturer: American (Waltham) Watch Company

Trade Name/Grade: COIN / 4 oz

Graphic Mark: [AWCO inside of Shield]

Serial Number: 9225

Case Size: 18-size

COIN SILVER

American (Waltham) Watch Co.

The specific Maker’s Marks and pocket watch case characteristics of this American (Waltham) Watch Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a shield containing A. W. Co., beyond the text and numbers engraved on this specimen.

Manufacturer: American (Waltham) Watch Company

Trade Name/Grade: NICKEL

Graphic Mark: [AWCO inside of Shield]

Serial Number: 32104

Case Size: 18-size

NICKEL

American Watch Case Company of Toronto

The specific Maker’s Marks and pocket watch case characteristics of this American Watch Case Company of Toronto pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a winged wheel, beyond the text and numbers engraved on this specimen.

Manufacturer: American Watch Case Company of Toronto

Trade Name/Grade: CASHIER / GOLD-FILLED - 25 YEARS

Graphic Mark: [Winged Wheel]

Serial Number: 395188

Case Size: 6-size

GOLD-FILLED

Bates & Bacon

The specific Maker’s Marks and pocket watch case characteristics of this Bates & Bacon pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

Manufacturer: Bates & Bacon

Trade Name/Grade: GOLD-FILLED - 20 YEARS

Graphic Mark: No Graphic Mark

Serial Number: 6791080

Case Size: 18-size

GOLD-FILLED

Bay State Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Bay State Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

Manufacturer: Bay State Watch Case Company

Trade Name/Grade: COIN / IMPERIAL

Graphic Mark: No Graphic Mark

Serial Number: 113824

Case Size: 18-size

COIN SILVER

Crescent Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Crescent Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a Crescent Moon and a Star, beyond the text and numbers engraved on this specimen.

Manufacturer: Crescent Watch Case Company

Trade Name/Grade: NICKEL

Graphic Mark: “TRADE” “MARK” separated by [Crescent Moon and a Star]

Serial Number: 7454

Case Size: 18-size

NICKEL

Dueber Watch Case Mfg. Co.

The specific Maker’s Marks and pocket watch case characteristics of this Dueber Watch Case Manufacturing Company pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

Manufacturer: Dueber Watch Case Manufacturing Company

Trade Name/Grade: SILVERINE

Graphic Mark: No Graphic Mark

Serial Number: 4158 (marked on perimeter of back cover)

Case Size: 18-size

SILVERINE

Fahys Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Fahys Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a letter G with lightning bolts, beyond the text and numbers engraved on this specimen.

ANTI-MAGNETIC

SHIELD

Manufacturer: Fahys Watch Case Company

Trade Name/Grade: ANTI-MAGNETIC SHIELD

Graphic Mark: [letter G with lightning bolts]

Serial Number: 1224

Case Size: 18-size

Fahys Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Fahys Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

Manufacturer: Fahys Watch Case Company

Trade Name/Grade: ORESILVER No 1

Graphic Mark: No Graphic Mark

Serial Number: K380

Case Size: 18-size

ORESILVER

No 1

Fahys Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Fahys Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, concentric circles with signature, patent date, and case material, beyond the text and numbers engraved on this specimen.

Manufacturer: Fahys Watch Case Company

Trade Name/Grade: ORESILVER No 1

Graphic Mark: [concentric circles with signature, patent date, case material]

Serial Number: Q2232

Case Size: 18-size

ORESILVER

No 1

H. Muhrs Sons

The specific Maker’s Marks and pocket watch case characteristics of this H. Muhrs Sons pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a lion, beyond the text and numbers engraved on this specimen.

Manufacturer: H. Muhrs Sons

Trade Name/Grade: GOLD-FILLED / LION

Graphic Mark: [lion]

Serial Number: 306227

Case Size: 18-size

GOLD-FILLED

Illinois Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Illinois Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

Manufacturer: Illinois Watch Case Company

Trade Name/Grade: GOLD-FILLED - 5 YEARS / MONITOR

Graphic Mark: [No Graphic Mark]

Serial Number: 2242154

Case Size: 18-size

GOLD-FILLED

Keystone Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Keystone Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a keystone with the letters CO inside, beyond the text and numbers engraved on this specimen.

SILVEROID

Manufacturer: Keystone Watch Case Company

Trade Name/Grade: SILVEROID

Graphic Mark: [keystone with letters CO inside]

Serial Number: 8660747

Case Size: 18-size

Keystone Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Keystone Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

SILVEROID

Manufacturer: Keystone Watch Case Company (Identified by the material name)

Trade Name/Grade: SILVEROID (SILVEROID is a KWCC trademark)

Graphic Mark: No Graphic Mark

Serial Number: 3046576

Case Size: 18-size

Philadelphia Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Philadelphia Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, concentric circles with “PHILADELPHIA WATCH CASE CO.”, and a crown, beyond the text and numbers engraved on this specimen.

GOLD-FILLED

Manufacturer: Philadelphia Watch Case Company

Trade Name/Grade: GOLD-FILLED / CROWN

Graphic Mark: [crown]

Serial Number: 8643104

Case Size: 18-size

Star Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Star Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There were no graphic marks utilized beyond text and numbers engraved on this specimen.

NICKEL

Manufacturer: Star Watch Case Company

Trade Name/Grade: NICKEL

Graphic Mark: No Graphic Mark (text STAR W.C.CO.)

Serial Number: 934914

Case Size: 18-size

Wadsworth Watch Case Company

The specific Maker’s Marks and pocket watch case characteristics of this Wadsworth Watch Case Company pocket watch case are illustrated and documented in the research entry card below. There was a graphic trademark utilized, a ship’s wheel, beyond the text and numbers engraved on this specimen. The ship’s wheel indicates that the Wadsworth watch case’s grade is Pilot.