Illinois Pocket Watch: Serial Number 1548880 (Grade 187)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/1548880/movement

Access Date: November 27, 2024

From the American Horology Archive:

Illinois Watch Co.

Grade: 187

Ruby Jewels

Manufacturer:	Illinois
Manufacturer Location:	Springfield, Illinois
Movement Serial Number:	1548880
Grade:	187
Model:	5
Estimated Production Year:	1900
Run Quantity:	400
Grade/Model Run:	7 of 16
Grade/Model Total Production:	3,750
Size:	16s
Jewels:	17j
Jewel Material:	Ruby
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Mixed
Movement Setting:	Lever
Plate:	3/4 Bridge Plate
Bridge Type:	3-Finger
Barrel:	Going
Adjusted:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Railroad Grade:	Yes
Dial Feet Locations:	24.5, 36.5, 55.5
Case Screw Locations:	3.5, 37.5
Case:	Various
Run ID:	4264.187G15.16S856.165M253.O1483.L3400.17J793
Database Version:	v52.467
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	11.29
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	38.01
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.066%
Registry Population: Scoped for This Run Only	6 (1.50%)
Research Note: This run contains movements with mixed finish patterns. #1548653: Verified as two-tone with gold circle center. #1548880: Verified with nickel "sunburst" damaskeening pattern.

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.