Ah! good point! I have no idea where it comes from - I got it last year from the Animal Sanctuary Shop in Summertown, Oxford, which is a very cosmopolitan area where people from all over the world come to work to study/research/work at the university - so literally things from all over the world turn up there.
What I was talking about is print itself - which is clearly of scandinavian origin with the stylized curved bird beak - but very interesting if it is actually american! - I am having a round in the quiz at my vintage event that will be "Scandinavian - or not?" and this would fit in either way -
Thanks - Eleanor