It really depends on the age of the VF and where it is - the French (quelle surprise) tend to make theirs differently to the Germans/Swiss. There is actually a UIAA working group writing a construction standard for VF at the moment, and they are having to try and make it fit both styles. Basically though, I don't really know the answer sorry.
Word, it's the one in the Abondance valley. From the photos it looks pretty airy so might end up being a bit trouser-filling for a 7yr old, but we'll see.