From the American Horology Archive:
Elgin National Watch Co.

Grade: 478

B.W. Raymond

Manufacturer:ElginQuestion Mark
Manufacturer Location:Elgin, IllinoisQuestion Mark
Movement Serial Number:28613691Question Mark
Grade:478Question Mark
Variation:B.W. RaymondQuestion Mark
Model:15Question Mark
Estimated Production Year:1926Question Mark
Run Quantity:3,000Question Mark
Grade/Model Run:32 of 91Question Mark
Grade/Model Total Production:185,400Question Mark
Variant Est. Production:171,400 (16S-M15-21J-ONL-A5PTI)Question Mark
Size:16sQuestion Mark
Jewels:21jQuestion Mark
Movement Configuration:OpenfaceQuestion Mark
Movement Finish:NickelQuestion Mark
Movement Setting:LeverQuestion Mark
Wind Mechanism:PendantQuestion Mark
Plate:3/4 PlateQuestion Mark
Barrel:GoingQuestion Mark
Train:QuickQuestion Mark
Regulator:BallQuestion Mark
Adjusted:YesQuestion Mark
Adjusted to Position:YesQuestion Mark
Adjusted # of Positions:5Question Mark
Adjusted to Temperature:YesQuestion Mark
Adjusted to Isochronism:YesQuestion Mark
Railroad Grade:YesQuestion Mark
Wind Indicator Available:YesQuestion Mark
Wind Indicator Present:YesQuestion Mark
U.S. Patents:77078596407596408Question Mark
Case:VariousQuestion Mark
Run ID:12969.478G32.16S3317.1615M257.O5967.L2369.21J366Question Mark
Data Research:1927/1950 Elgin Serial List
Question Mark
Database Version:v52.643Question Mark