Black River Falls, Wisconsin Disc Object
Document coverPage 1 of 65_HS1-834228961_62-HQ-83894_Section_1 · View original on war.gov
A disc-shaped object approximately 19 inches in diameter was found on July 10, 1947 at Jackson County fairgrounds near Black River Falls, Wisconsin by city electrician Sig Hanson. The device contained what appeared to be an RCA photo-electric cell, a small electric motor with shaft and propeller, and a wooden tail-like rudder, possibly constructed by a juvenile.
“an object in the shape of a disc, nineteen inches in diameter had been found July 10, 1947, by one SIG HANSON, city electrician on the Jackson County fairgrounds, near Black River Falls, Wisconsin, about 3:30 p.m. The disc might be made of a substance such as cardboard covered by a silver airplane dope material. The contraption has a small wooden tail like a rudder in the back and inside of the disc is what appears to be an RCA photo-electric cell or tube.”
Verbatim from 65_HS1-834228961_62-HQ-83894_Section_1 · View original on war.gov
Case details
- Date
- 1947-07-10
- Precision
- day
- Location
- Jackson County fairgrounds, near Black River Falls, Wisconsin
- Country
- United States
- Region
- Wisconsin
- Branch
- FBI
- Unit
- SAC, Milwaukee
- Sensors
- eyewitness
- Shape
- disc-shaped
- Size
- nineteen inches in diameter
Resolution
Likely constructed by a juvenile; contained cardboard, silver airplane dope, RCA photo-electric cell, electric motor with propeller, and wooden rudder tail
Source document
Agency: FBI
File: 65_HS1-834228961_62-HQ-83894_Section_1
Case ID: 1947-FBI-F2B8FE
View original on war.gov →Extracted via LLM. Verbatim excerpt validated.