Belgian-made, Swedish imported gas mask canisters from Finnish population shelters. This model was used in limited numbers by Finnish soldiers during the Second World War. All are wartime manufacture to the best of our knowledge. One-off lot!
Complete with a carrying strap. A nice tin can for storing all kinds of stuff you don't put into your mouth if you're not into collecting. Inside dimensions about 30,5 x 11,5 cm.
Used and stored for a very long time. Some rust, dings, and wear may occur. The strap and its attachment rivets are sometimes in a bit questionable condition.