Early in World War One, a small number (less than 200) Berthier rifle and cavalry carbines were adapted to use Chauchat magazines for aerial use. They were employed as defensive arms in observation balloons and as survival rifles in powered aircraft - applications where the larger capacity was of specific use, and the need to reload or carry extra ammunition was less important. Only a few exist today in museums and private collections, and the owners of Galerie de Mars in Paris were generous enough to let me film this example from their private collection for you.