This is a beautiful piece!
Interesting that the Southern Cross didn't make it's only truly noted flight and historical at that until May 1928. Byrd didn't have his record setting and historical flight until 1928 and after. Yet this is noted as being from 1927???
I question the dating of the piec, even if it is at Stanford edu, due to the fact that it states: "[Place of publication not identified] : [Publisher not identified], 1927." and the the noted aviation flights were ALL after 1927.