Recently I found a Perkeo I that looked awful; dirty and mildewed, but it was in a nice case which I don't have for my Perkeo II and it had a nice Voigtlander rangefinder on it so I bought it. After I cleaned it up it turned out to be in remarkably good shape except for a self timer that is jammed in the on position. I need some advice on how to get the shutter out so I can determine what is causing the timer to jam. I don't see any screws holding the shutter assembly together. Anybody know anything about these little beauties? Thanks in advance.