The Gladiators were the most modern fighter in Swedish service, and twelve were no less than a third of the total operational fighter force. (More modern fighters were ordered, but not yet delivered.) They were camouflaged with aluminum dope partially over the olive green top surfaces and given Finnish insigninas.
On Jan 7:th 1940 the first airbase was operational at Kemi. Later on, five forward bases were constructed.
During the cold winter until the cease fire, F19 patrolled this area and made a number of contacts with Soviet bombers and fighters. See more about F19 in links.