A few questions first. Does it have a screw top cap? Does the leather pull off the container (is it glass/metal underneath)? If there is a bottle/tin inside, what are the markings on the sides or bottom? Dimensions would help. The more information provided when trying to get an item identified the better. For example, just guessing it looks 2 to 3 inches tall and 1.5 inches wide or is it 12 to 14 inches tall and 5 inches wide. Put a ruler beside your item when photographing it to help put it in prespective for those who will take a look at it to help with identification.
I'm thinking at this time it's a post 1906 hip flask, but more information may change this......junkman