jussi, that would be a possibility except that this pistol was manufactured after WWI (sometime in the mid to late 1920's).
I came across as old post which said:
"I have looked thru my books of pre-WWII Finnish units. My oppinion is:
KKE = Karjalan Kaartin Esikunta N.66 = Numero 66.
Same in English: Staff of Karelia Guard number 66.
This Unit was part of 2nd Division in 1937."
Link:
http://forum.lugerforum.com/showthre...hlight=finnish
This is the only bit of info I have found on this unit marking. What do you guys think?