Wow, that’s a real treasure! Back in the early 1900s, a handful of pioneers like the Wright brothers and the brothers Langley were getting the whole world’s attention, and folks started putting them on currency as a way to brag about how far we could go. In the 1910s, the U.S. Mint issued a few special commemorative coins—like that 1919 one you found, which celebrates the first nonstop transatlantic flight by Alcock and Brown. Those coins were usually minted in limited numbers, and they were a nod to how far the sky had opened up. They’re a neat reminder that even back then, people wanted to keep a little piece of the sky in their pockets. If you’re up for it, we could dig up more examples from that era—there’s a whole list of aviation-themed coinage from the 1910s and 1920s that’s just buzzing with history!