As it's serial number starts with K it has to be swedish. However, Sweden did not join the Eur nor did they print notes. I did some research on the web and found that Tumba Bruk AB did 'test prints' of Euro notes some years ago (see literature below). I assume these test-prints have been more than tests. There was a Euro referendum in sweden which ended in swedish people abandoning the euro after some politician was killed, if I remember correctly. So I think Sweden sat on a stack of paper as the government let Tumba Bruk print some notes as the Referendum seemed to be just a formal thing before that incident. Maybe they contacted the ECB in autumn 2009 which took the notes than and brought them into circulation as there was a high request for notes that days.
Remember that England also printed some notes bearing the H-shortcode. The new thing is, that we now have notes printed for a country that never joined the Euro. Well I think I'll gonna keep that note. Has anybody else found something like that??
Serial:

(I have an uncensored verison too, but I fear faked hits as soon as it is possible to enter it)
Printer:

Literature:
Swedish test production is mentionned here:
http://www.sedelmynt.se/eur/english.htm" onclick="window.open(this.href);return false;
Official stating of the 'test' production: See page 19 right column 'Euro banknotes'
http://www.riksbank.com/upload/Dokument ... rt5eng.pdf" onclick="window.open(this.href);return false;


