It looks like an American knife to me. If it was made before 1922-23, it was likely made at the Walden Knife Company plant in New York State. First use of the Wedge and Bar logo was 1905 according to Alvin Sellens.
In about 1923 the Walden knife factory was moved to the Winchester facilities in Connecticut, and continued to produce KK knives.
Simmons and Winchester separated again, in about 1929. Knife production ceased at the Winchester facility shortly after, in 1930-1931. It started up again some time later until 1942, (but may not have made any KKs) when it stopped for good, according to P.R.Pankiewicz. Schrade may have made KKs during that upheaval.
Shapleigh bought Simmons in 1940. I don't know where they got their knives after that. Some from Schrade, some from Camillus . . .who else . . .???
It seems, from the peened rivets, and the (what looks like) hand jigged bone, it is an early knife.[end quote]
Looking at my meager supply of Winchester pics, I suspect it was made in Walden, after 1905 of course, and likely before 1923. But I am groping in the semi-darkness!!

I'll just sit here and scratch my errr. . . watch, and hope someone more knowledgeable comes along . .