Front:
THE 40-1NCH TELESCOPE OF THE UNIVERSITY OF CHICAGO,
YERKES OBSERVATORY, WILLIAMS BAY, WIS CONSIN.
THE OBJECT-GLASS HAS A DIAMETER OF 4O INCHES. THE TUBE IS
63 FEET LONG, AND WEIGHS SIX TONS. THE REVOLVING DOME IS
90 FEET IN DIAMETER. THE FLOOR MAY BE ELEVATED
THROUGH 23 FEET UP TO THE BALCONY.
Back:
co
12110
-MADE IN U.S.A. BY E. C. KROPP CO., MILWAUKEE, WIS.
