Just one additional point - it sounds very much as if Ian's Leica was scuffed and with minor dings because it was regularly used (and serviced). This is rather different from a Leica which has lain around for decades and is dirty and corroded - it is almost inconceivable that a camera like this would work satisfactorily without servicing. Even then, you can occasionally be lucky - one of my M2s was bought for just over £200 with just slight signs of use and a seized shutter release. Obviously a CLA was required, now it's fine.
Originally Posted by Ian Grant