THE SECRETS OF DELLSCHAU: The Sonora Aero Club and the Airships of the 1800s, A True Story:...

https://www.amazon.com/SECRETS-DELLSCHAU-Sonora-Airships-1800s/dp/ [login to see] ?SubscriptionId=0JTCV5ZMHMF7ZYTXGFR2&tag=thewridra-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN= [login to see]
Normally, I try to avoid stuff like this, however, in this one limited case, I'd heard the story sevl times before, and this book espec lpjust happened to capture my attention....