This is a nice looking Leather black powder flask that I purchased years ago at a Civil War show, since then, it has been sittingin a glass cabinet .
As you can expect, the leather is slightly worn, due to use and age, the stitching is fine and the brass measuring part at the top shows patina, again as you would expect on a piece like this.
If you have any questions, please ask, and I will do my best to answer them, thanks for looking.