Original wartime Finnish army shoe polish tin.
This is a 11 cm diameter and 4 cm tall two-part friction fitted steel tin. These tins are empty, but they may have stains from old shoe polish. You can use these for a lot of other things, too. Store something in them that you want to keep safe and intact.
The tins have the army intendant’s stamp INT. followed with a slash and a year of manufacture.