Front:
ENGINE 2
1807
PORTLAND
OBSERVATORY
Portland Observatory, Erected 1307.
Greetings from Portland Maine.
Back:
THE HUGH C.LEIGHTON CO.,MANUFACTURERS, PORTLAND, ME.,U.S.A.PRINTED IN FRANKFORT/MAIN, GERMANY 319
One Cent for
United States, and
Island Possessions,
Cuba, Canada and
THIS SPACE FOR ADDRESS ONLY.
