THE PANAMA CANAL RECORD, Balboa Heights, Canal Zone, 1928. A little magazine subtitled: "Official Publication of the Panama Canal" with a wealth of data concerning the canal and its use. Note that the photo is "generic" and the issue you get will not have this specific content or be of this specific date but will have the format as shown. Twenty-six pages measuring 9"x6".

Background (wiki):  The history of the Panama Canal goes back almost to the earliest explorers of the Americas. The narrow land bridge between North and South America offers a unique opportunity to create a water passage between the Atlantic and Pacific oceans. This potential was recognized by the earliest colonists of Central America, and schemes for such a canal were floated several times in the subsequent years. By the late-19th century, technological advances and commercial pressure advanced to the point where construction started...  View More