On eBay it'd be "Excellent" with "no effect on images".
Good luck!
You probably already know all this but just in case (not trying to be a know it all or jerk!) As far as sharpness, keeping the rewind knob taunt on any camera is going to have a positive effect. With large format we'd double stick tape to the center of the film to prevent it bowing out, especially when shooting down where gravity would want to pull the film away from the holder. There were also numerous vacuum back devices for film and paper, it was standard for pre-laser process cameras.
But most people just stopped down. Technically there is no reason for a 1932 Leica LTM camera to be any less sharp than a 1999 Canon/Nikon/Leica without resorting to anything special or out of the ordinary. With older hazey, scratched up lenses you'll tend to get more flare and glow than overall blurriness. Overall blur is most usually shaking or some gross misalignment (like dropping a camera and bending something).
Use a tripod or stable surface and shoot something that is very measurable like a ruler or newsprint, use a second camera to compare especially if you consider it a sharp, well functioning one. You can even use the same roll of film in both cameras.