Heliotrope
![Image: Heliotrope](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/000471-Heliotrope_%289%29.jpg?itok=dCokMeV9)
Detailed Description
Manufactured by American Instrument Company. Survey instrument to take measurements from the Sun.
Object ID: USGS-000471
Sources/Usage
Public Domain.
Manufactured by American Instrument Company. Survey instrument to take measurements from the Sun.
Object ID: USGS-000471
Public Domain.