From the July 22, 1933, issue
By Science News
PERKINS OBSERVATORY 69-INCH MIRROR IS THIRD LARGEST
Third largest in the world and the first all-American giant telescope, the 69-inch telescope of Perkins Observatory of Ohio Wesleyan University is now in operation.
When its mirror was being placed in position just after being coated with silver, the unusual photograph on this weeks cover was taken. Where star images are captured when the mirror is in its mounting, there may be seen reflected a portion of the graduated circles of the telescopes mounting.