As the title says, I need some help with a Voigtlander that I picked up this weekend. It mostly looks (to my untrained eye) to be in pretty good shape, but there are a couple of issues. First is that the whole shutter/iris/lens assembly at the front (what is this called?) turns pretty freely. It isn't supposed to, right? The second is that I can only turn the shutter speed between T and 25. There seems to be some sort of a stop preventing me from getting to 50, 100, and 250. I can't find anything blocked, but I also don't really know what I'm looking for. I've uploaded a video showing what I mean if my words aren't clear. At the end it also shows the back side of the lens while I rotate the front. Any help is appreciated, I'd really like to dip my feet into 120 Folders.