Mirror being ground in John Brashear's Pittsburgh optical shop

hist-048.jpg

Dublin Core

Title

Mirror being ground in John Brashear's Pittsburgh optical shop

Subject

mirror, workshop

Description

A picture of the partially figured mirror on the grinding stand. The surface is much smoother than that of the raw mirror blank

Creator

Unknown

Publisher

National Research Council Canada

Date

ca. 1917

Citation

Unknown, “Mirror being ground in John Brashear's Pittsburgh optical shop,” Herzberg Archives, accessed April 21, 2026, https://archival.astroherzberg.org/items/show/157.