One of our largest rare book collections is the Benjamin Monroe Anderson Collection on the History of Aeronautics. Some of the books have beautiful covers like With the Airmen by Claude Grahame White and Harry Harper with colored illustrations by Cyrus Cuneo.
Now, here’s the mystery. This version of the book doesn’t contain a date. Furthermore, when I searched online, I couldn’t find an example of this particular cover. Instead, the one below is the common version.
The only clue about the our book’s publication date is that Auntie Syb. gifted it “Xmas 1925.”