| 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. |
| Length: | |
| Width/Depth: | |
| 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." |
| Provenance: | |
| Inventory Number: | D1L |