Yes, I got screwed. Not by the seller but by the manufacturer!
About 10 years ago I got at a charity shop an old Franka camera. It was filthy, very used, but the shutter clicked really well. I looked at it and figured that it was a rangefinder by looking at the second window. I couldn't see the second image in the finder but I figured that it probably just needed a new mirror on the rangefinder. So I got it for probably 8$ or something. I took it home, cleaned it up but as I felt my camera repair skills were very sub par at the time, I just put it on a shelf and forgot about it.
Fast forward to last night. I started wondering what I'd do today. I looked at the camera and figured that it was the next in line for fixing.
I looked it up on Camera-Wiki and it turns out it should be a Franka E... or is it?
This afternoon, I took off the top cover only to discover that there is no mechanism for a rangefinder!
I looked at the viewfinder and it's devoid of any port for light to come-in through the side. There's no beam splitter and no provision to put one.
So, it's just a viewfinder camera... so I cleaned all of it's two lenses, lubricated the film advance which is really weird with a lot of places that rub metal on metal and re-assembled that part...
Now, at least the film advance snaps back like it should...