dealer, spotted the books, and for $100 bought them from the trash collector. The books sat undisturbed in Washington's store under a pile of discarded carpet for over a year. In 1968, Mary Jane Victor, an art student at the University of St. Thomas in Houston stumbled upon the notebooks, and persuaded Washington to lend some of them to the university for a display on the story of flight. She also brought them to the attention of art patron and collector Dominique de Menil. Mrs. de Menil purchased four of the notebooks for $1,500. Of the remaining books, seven were purchased by Peter (Pete) G. Navarro, a Houston commercial artist and UFO researcher. After studying them, Navarro sold four of the notebooks to the Witte Museum in San Antonio, and the San Antonio Museum of Art. One notebook ultimately ended in the private abcd (art brut connaissance & diffusion) collection in Paris belonging to Bruno Decharme, a French filmmaker and art collector. The rest of the notebooks ended up in private hands. Some were dismantled and single pages were sold. In 2016, a double sided page dated 1919, sold for $22,500 at Christie's. Dellschau's earliest known work is a diary dated 1899, and the last is an 80-page book dated 1921-1922, giving his career as an artist a 21-year span. His work was in large part a record of the activities of the "Sonora Aero Club," of which he was a purported member. Dellschau's writings describe the club as a secret group of flight enthusiasts who met in Sonora, California in the mid-19th century. According to Dellschau, one of the club members discovered a formula for an anti-gravity fuel called "NB Gas." The club mission was to design and build the first navigable aircraft using the NB Gas for lift and propulsion. Dellschau called these flying machines Aeros. Dellschau never claimed to be a pilot or a designer of any of the airships; he identifies himself only as a draftsman for the Sonora Aero Club. His collages incorporate newspaper clippings (called "press blooms") of then-current news articles about aeronautical advances and disasters. Though Dellschau's work mentioned names of purported Sonoro Aero Club members, research of census records, voting rosters, and death records has found nothing to substantiate the existence of this group, though a few gravestones in the Columbia Cemetery share identical surnames. It is speculated that, like the voluminous