Pocket Watch Database

Keystone Watch Case Co. Silveroid
Watch Case Marking for Keystone Watch Case Co. Silveroid: Guaranteed
Silveroid
Genuine
[Keystone Block]

Note: Case manufacturers modified markings over time. As a result, the image above is simply a representation of one particular marking used by the company. Your case marking may differ based on the production era and other parameters.

Silveroid

Database ID:PWDB-19
Case Grade:Silveroid
Material:Nickel Alloy
Introduced:April 1886
Note:Introduced in April 1886 [The Trader, Ad, April 1886].
Marking Variants:
(Not Intended to be Comprehensive)
Catalog Sources: 1877DFC 1878CYC 1880GHR 1880JAB 1880NHW 1882SFM 1883GHR 1883UNK 1884LSS 1885OY 1886HMS 1886RA 1887BHIA 1887LAM 1888BA 1888OY 1889BAM 1889EVR 1890AP 1890BA 1890CHK 1890JC05 1890OY 1890SFM 1891RR 1891SAC 1892ACR 1892BAC 1892CPS 1892WES 1893BFNA 1893BHIA 1893MCE 1893SAC 1894BA 1894BATM 1894NRC 1895OY 1895SFM 1896MF 1896OY 1897BB 1898MLMF 1899ACB 1899BHIA 1899SAC 1900BA 1900BHIA 1900LMC 1900NHW 1901BAC 1901OY 1902ACB 1902BATM 1902BB 1902MF 1903ACB 1903BAC 1903FDW 1903N76 1903ON 1904ACB 1904BA 1904LB 1904PWC 1905ACB 1905BAC 1905DH 1905FNCS 1905ON 1906ON 1906SRC 1907ACB 1907JVF 1907NAC 1907NBC 1907OY 1907SFM 1908ACB 1909BAC 1910ACB 1911NG 1911OY 1911WJJ 1912COC 1912HA 1912NG 1912SFM 1912WJJ 1913FDW 1914ELD 1915ACB 1915ON 1915PWE 1916LCM 1917BA 1923CBN 1923ON 1925ASJ 1925CPS 1928ON 1932ON 1942WAG
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2 Admirations
Serial No.: #1674118
Manufacturer:Elgin
Grade:81
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1885
Case Material:Coinsilver
Case Serial:100054
Added By:Dgwatch Profile Image Dgwatch
2 Admirations
Serial No.: #329941
Manufacturer:Illinois
Grade:Miller
Size:18s
Model:3
Jewels:17j
Setting:Lever
Finish:Gilt
Est. Date:December 1882
Case Material:Coinsilver
Case Serial:104941
Added By:keywind Profile Image keywind
7 Admirations
Serial No.: #545925
Manufacturer:Illinois
Grade:1
Size:18s
Model:3
Jewels:7j
Setting:Lever
Finish:Gilt
Est. Date:1885
Case Material:Coinsilver
Case Serial:106299
Added By:Rickybe Profile Image Rickybe
2 Admirations
Serial No.: #1739278
Manufacturer:Elgin
Grade:96
Size:18s
Model:4
Jewels:7j
Setting:Lever
Finish:Gilt
Est. Date:1885
Case Material:Coinsilver
Case Serial:109008
Added By:sprecher2015 Profile Image sprecher2015
3 Admirations
Serial No.: #120026
Manufacturer:Rockford
Grade:Unknown
Size:18s
Model:1
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:1881
Case Material:Coinsilver
Case Serial:109651
Added By:TimFitz Profile Image TimFitz
3 Admirations
Serial No.: #1423466
Manufacturer:Elgin
Grade:6
Size:18s
Model:4
Jewels:7j
Setting:Lever
Finish:Gilt
Est. Date:1884
Case Model:Coin
Case Material:Coinsilver
Case Serial:120114
Added By:tkeegstr Profile Image tkeegstr
5 Admirations
Serial No.: #25468
Manufacturer:Cornell Watch Co.
Grade:Cornell Watch Co.
Size:18s
Model:2
Jewels:15j
Setting:Lever
Finish:Gilt
Est. Date:1875
Case Model:5 ounce
Case Material:Coinsilver
Case Serial:124756
Added By:tsullivan Profile Image tsullivan
8 Admirations
Serial No.: #2664667
Manufacturer:Waltham
Grade:Broadway
Size:18s
Model:1877
Jewels:7j
Setting:Key
Finish:Gilt
Est. Date:January 1885 - June 1885
Case Material:Coinsilver
Case Serial:129250
Added By:clone1 Profile Image clone1
4 Admirations
Serial No.: #604694
Manufacturer:Illinois
Grade:2
Size:18s
Model:2
Jewels:11j
Setting:Lever
Finish:Half-Nickel
Est. Date:1886
Case Material:Coinsilver
Case Serial:130614
Added By:xtoolmanx Profile Image xtoolmanx
15 Admirations
Serial No.: #705135
Manufacturer:Illinois
Grade:4
Size:18s
Model:2
Jewels:11j
Setting:Lever
Finish:Gilt
Est. Date:1887
Case Model:2
Case Material:Coinsilver
Case Serial:135564
Added By:CJEmpire3 Profile Image CJEmpire3
4 Admirations
Serial No.: #214555
Manufacturer:Illinois
Grade:103
Size:18s
Model:3
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:November 1880 - December 1880
Case Material:Coinsilver
Case Serial:135564
Added By:CJEmpire3 Profile Image CJEmpire3
4 Admirations
Serial No.: #9829
Manufacturer:Tremont Watch Co.
Grade:Tremont Watch Co.
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1868
Case Material:Coinsilver
Case Serial:135709
Added By:geoulri1 Profile Image geoulri1
2 Admirations
Serial No.: #3305766
Manufacturer:Hampden
Grade:No. 105
Size:16s
Model:5
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1915
Case Material:Coinsilver
Case Serial:137296
Added By:JJ1174 Profile Image JJ1174
4 Admirations
Serial No.: #123638
Manufacturer:U.S. Watch Co. (Marion, NJ)
Grade:G.A. Read
Size:18s
Model:1
Jewels:7j
Setting:Key
Finish:Gilt
Est. Date:1871
Case Material:Coinsilver
Case Serial:137889
Added By:ebsrods Profile Image ebsrods
4 Admirations
Serial No.: #23861
Manufacturer:New York Watch Co.
Grade:Theo. E. Studley
Size:18s
Model:1870
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:1872
Case Model:.
Case Material:Coinsilver
Case Serial:137899.
Added By:ebsrods Profile Image ebsrods
26 Admirations
Serial No.: #2443
Manufacturer:U.S. Watch Co. (Marion, NJ)
Grade:Fayette Stratton
Size:18s
Model:No. 32
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1867
Case Model:Leader
Case Material:Coinsilver
Case Serial:143249
Added By:esoxhunter Profile Image esoxhunter
7 Admirations
Serial No.: #158573
Manufacturer:Hampden
Grade:No. 35
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1880
Case Material:Coinsilver
Case Serial:169244
Added By:giddykippa Profile Image giddykippa
3 Admirations
Serial No.: #95939
Manufacturer:Lancaster Watch Co.
Grade:New Era
Size:18s
Model:1
Jewels:7j
Setting:Key
Finish:Gilt
Est. Date:1884
Case Material:Coinsilver
Case Serial:177378
Added By:HerbertTrw Profile Image HerbertTrw
3 Admirations
Serial No.: #170608
Manufacturer:Elgin
Grade:62
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1871
Case Model:Leader
Case Material:Coinsilver
Case Serial:177390
Added By:Dave895 Profile Image Dave895
9 Admirations
Serial No.: #17920
Manufacturer:E. Howard & Co.
Grade:Series III
Size:19s
Model:Series III
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1868
Case Material:Coinsilver
Case Serial:0182204
Added By:Bostonjoe Profile Image Bostonjoe