Browse Items (12 total)

A picture taken looking down the telescope tube after the primary mirror has been installed. The primary is visible through the partially open mirror cover.

In this picture, the mirror in its case is just below the telescope tube prior to being raised and attached to the telescope tube.

In this picture, the mirror in its case is just below the telescope tube prior to being raised and attached to the telescope tube. Visible in the background are the two clocks used by observers.

A picture of workers preparing to install the primary mirror. The mirror is hanging in the middle of the picture with its surface covered. Visible in the background are the two clocks used by observers. One kept normal time, the other sidereal time.…

A picture of the figured mirror in Brashear's workshop. The calendar shows the month as November, 1915. We don't know if this is the month the image was taken.

A picture of the more or less completed mirror in Brashear's workshop

A picture of the more or less completed mirror in Brashear's workshop

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

A picure of the mirror blank set up on the grinding table in Brashear's Pittsburgh workshop. Brashear appears ready for work, wearing his apron and a peaked cap.

A picture of the mirror blank in John Brashear's workshop before work started on figuring and polishing it to the correct shape. The mirror blank was shipped from Belgium just a few days before the start of WW I. John A. Brashear is resting his arm…

A picture of the mirror blank in John Brashear's workshop before work started on figuring and polishing it to the correct shape. The mirror blank was shipped from Belgium just a few days before the start of WW I.

A picture of the mirror blank in John Brashear's workshop before work started on figuring and polishing it to the correct shape. The mirror blank was shipped from Belgium just a few days before the start of WW I.