I'm looking for interesting interlocking wooden puzzles from a brain teasing point of view.
So not in the impossible side of the spectrum, and not too easy. It should be solvable by spending some evenings a week during a month or a few. (I realize how vague my description is, but better than nothing. )
I am by no means associated with this company, but have known and enjoyed their products for many years (which could be as much as nearly 40 years actually!) and have always felt those were a very nice balance of craftsmanship, difficulty and price. And the company is based in Europe, which might also make things easier for you.
[ January 30, 2017: Message edited by: Lionel Depeux ]