The al vista on the auction site looks like a 3B, which took 3.5" x 9" photos on #101 film. The al vistas are fun cameras to use but tend to be beat up, as they weren't all that well made. Birch (or something like it) plywood, which tends to delaminate with age, is the base for the camera. That camera could be made usable probably, but would require a lot of restoration and is way over priced for that. I've had to re glue and clamp the laminations together on a bunch of cameras, and have replaced the bellows on a few as well. It's all doable with time but takes some figuring out too. I have information on my web site on al vistas if anyone has an interest in them