Front:
103-TELESCOPE WITH 40 IN. LENS, SECOND LARGEST IN THE WORLD,
WILLIAMS BAY ON LAKE GENEVA, WISCONSIN
3A-H331
Back:
The 40 inch telescope of the Yerkes Obser-
vatory has the second largest lens in the world.
The instrument is 63 feet long and with
attachments for photographic work 6 feet are
added.
The tube weighs 6 tons and the moving
parts weigh 20 tons.
It is so delicately balanced that it can be
moved with one hand.
REG. U.S. PAT. OFF.
ke Geneva,
behind railing,
Flors raisest lowers,
College Camp, lursa
borne revolves on one
isted rail & box car
wheels,
Comass enfant
regulates light
Rev. Gabriel
Aug, 19144
"C.T.ART-COLORTONE
in
ynca grounds ,
