Front:
150
THE OBSERVATORY OF THE 20O INCH TELESCOPE, PALOMAR MT. NEAR ESCONDIDO,
SAN DIEGO COUNTY, CALIFORNIA
Back:
5-18
The world's largest astronomical observa-
tory built at the cost of six million dollars,
will house the giant 200-inch mirror. The Palo-
mar site was chosen after seven years' in-
vestigation of fifteen different peaks in South-
ern California. Scientists from all parts of the
world will make up the personnel and ob-
servations will begin in 1940.
MANUFACTURED BY LONGSHAW CARD CO., LOS ANGELES. CALIF
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