I searched for where the name "Rare Vos" comes from, because I felt it must have a Belgian influence and I believe this is the original "Rare Vos":

http://blog.seniorennet.be/bierblog/....php?ID=762363

It's a pub in Schepdaal with the same name that is apparently well known for it's fine selection of beers and they brew their own house-beer with the same name.