A lovely rendition of the piece! I know of (and have played) a couple of J.B. Vuillaumes, and they have a little bit of a weird quality about them..... almost like you need a special key to "unlock their sound" and also playability. 7:02 to 7:08 sounded like a bit of a struggle, but with passing time and the right bow would "solve" how to get the best sound out of the instrument WITH ease. I thought it was a Sartory before seeing the first part of the video. I thought perhaps Sartory or Hill. I didn't think of Bazin bows, because they adapt well almost instantly (in my opinion).