Object name: Heliostat
Maker: Possibly the John A. Brashear Co., Allegheny PA.
Serial / Maker's No:
Patent Date / Patent No / Date of Manufacture: Similiar items were sold by the Brashear Co. around 1910.
Height: 17"
Diameter: The base has a 12" diameter footprint.
Weight: 23.75  lbs.
Description: Probably used for teaching purposes. The mirror measures 3/8" x 5" x 8"
References: Larry Webster of the Mt. Wilson Observatory has a similar heliostat that is signed "John A. Brashear Co. Ltd. Allegheny, PA USA."
Inventory Number: D1L