Front:
COMET BROOKS OF 1911 FROM A NEGATIVE MADE WITH THE
BRUCE PHOTOGRAPHIC TELESCOPE,
YERKES OBSERVATORY, UNIVERSITY OF CHICAGO,
WILLIAMS BAY, WISCONSIN.
THE COMET WAS 66 MILLION MILES DISTANT FROM THE EARTH.
THE SMALL STREAKS ARE TRAILS OF STARS.
Back:
22177
POETRD 3
TU
TO ANYWHERE
IN U.S. VIA
AIRMAIL
CO
-MADE IN U.S.A. BY E. C. KROPP CO., MILWAUKEE
