See photos for condition. Some cracks on dial.Running 24 hour test + 1 second I believe this case is gold filled but only marked illinois Spartan 
 Private label on dial C H Ankeny & Co Lafayette Ind. 

Elgin National Watch Co.

Grade: 313

Manufacturer:Elgin
Manufacturer Location:Elgin, Illinois
Movement Serial Number:13316473
Grade:313
Model:7
Class:110
Estimated Production Year:1908
Run Quantity:2,000
Grade/Model Run:26 of 278
Grade/Model Total Production:524,000
Size:16s
Jewels:15j
Jewel Setting:Screw-Set
Movement Configuration:Openface
Movement Finish:Nickel
Movement Setting:Pendant
Plate:3/4 Plate
Barrel:Going
Balance Type:Expansion
Balance Jewel Material:Ruby
Train:Quick
Regulator:Moseley
Hairspring:Breguet
Standard Dial Type:Single-Sunk
Adjusted:No
Railroad Grade:No
U.S. Patents:596407, 77078, 585025
Data Research:1909 Elgin Serial List
1915 Elgin Serial List
1927/1950 Elgin Serial List
Case:Various
Run ID:5991.313G26.16S1323.167M360.O1969.P3606.15J1735
Database Version:v52.256