This is the 1991 Zonian yearbook from Balboa High School, located in the town of Balboa on the Pacific side of the isthmus of Panama in the former Canal Zone. The contents include faculty and student activities for grades 9 through 12. The end of the yearbook has cool advertisements from familiar places in Panama and the former Panama Canal Zone. This yearbook is in new condition (see photos). 

This yearbook was part of the Panama Canal Museum archives. When the museum closed down, I gave the museum a large donation in exchange for some of their yearbooks. I already have a copy of this yearbook in my personal collection, so I am selling this copy to recover some of the money from my donation.

Many of the yearbooks from the Panama Canal Zone have been digitized and are available as free downloadable JPGs on the University of Florida's archival website, but you cannot search the text on graphics and reading jpegs on iBooks is not easy on your eyes.. You can also purchase xerox copies of yearbooks from Classmates.com for about $80, but it is much better to purchase an original copy of this yearbook to keep in your own collection.