When Bahco was independent comppany, they bought all kind of tool comppanys, here is one;
I wen't to this local very old toolshop. The shopkeeper, an old lady, got these in hidden;
Original C.O Öberg files!
(those are Euro prices)
She told me that this set came to their store in early 1960's and these are best files in world (Nice sell speech), but when I ask my father; he told that hes father bougth these Öberg files that he has and old man used to sharpen tools for carpenters in my area and still those files work.
So maybe old lady at toolshop was right...
These are brand new files from 1960's
C.O Öberg was founded in 1850 and was bought by Bahco in 1975 and after this all Bahco files had "smiling moon" -logo on them.
Only drawback these days is that even "smiling moon" files are made in Taiwan today...