I've just developed and scanned my first test roll shot with a Leica iiif that I recently bought at an auction (1940 Elmar f3.5 lens and 1954 camera body). Almost all of the photos had this mark on the right hand side (the mark is visible on the negatives too). I'm wondering if anyone knows whether this is a light leak or a shutter curtain problem. Or something else? Is this a problem with the mechanics of the camera of did I perhaps load the film incorrectly?
Everything else about the camera seems in good working order apart from this.
Thanks in advance,