Patented a century ago, this 2 1/2" by 7/8" diameter cylindrical case was originally designed for carrying matches when camping, hiking, or working in remote areas.
It is equally useful today for the same purpose or for carrying anything else you want to keep dry when you are outdoors.
The all-brass construction is chrome plated for better surface hardness. The checkering on the cylinder sides is for use with strike-anywhere matches and doubles as a gripping surface when opening and closing the container. If not using strike-anywhere matches, put a section of the striking surface (that comes with the matches) into the container.