Can anyone help me identify this Brazil stamp? I came across it recently in a box of material a friend gave me that was part of his mother's collection. It's been quite a treasure hunt going through the box. This one struck me because it has what appears to be a zeppelin on it. Now, I'm not going to presume that it's at the same level as the U.S. zeppelins, but I am intrigued that I might have found some of interest. Unfortunately, it's not on a full cover, despite all the other covers the lady had saved. Any thoughts?
