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From the American Horology Archive:
Illinois Watch Co.

Grade: Hoyt

Manufacturer: Illinois ?
Manufacturer Location: Springfield, Illinois ?
Movement Serial Number: 9743 ?
Grade: Hoyt ?
Model: 1 ?
Estimated Production Year: 1873 ?
Run Quantity: 1,000 ?
Grade/Model Run: 17 of 18 ?
Grade/Model Total Production: 14,400 ?
Size: 18s ?
Jewels: 9j ?
Jewel Setting: Burnished Jewels ?
Movement Configuration: Adaptable ?
Movement Finish: Gilt ?
Movement Setting: Key ?
Wind Mechanism: Key ?
Plate: Full Plate ?
Barrel: Going ?
Balance Type: Expansion ?
Train: Coarse ?
Regulator: Plain ?
Hairspring: Flat ?
Standard Dial Type: Single-Sunk ?
Adjusted: No ?
Railroad Grade: No ?
Dial Feet Locations: 16.5, 36.5, 53.0 ?
Case Screw Locations: O-36.5, H-51.5 ?
Movement Markings: Hoyt Springfield, Ill. Patent Pinion ?
Case: Various ?
Run ID: 17.G3.18S17.181M17.A17.K17.9J3 ?
Database Version: v52.978 ?
Advanced Metrics
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Registry Population: Scoped for This Run Only: 6 (0.60%) ?
$ Estimated Value (12 Month Change): +1.69% Analyzing 164 Sales ?