I posted about this some time ago, but I can't remember when, in which forum, or even which newsgroup. I even got an answer to my question, but I can't remember what it was. OK, gettin' a little old here. No jokes. A few years ago, I saw some original negatives of Yosuf Karsh and on one 8x10 neg of Marshall McLuhan, I noticed a small patch where it had been scraped with a knife and the area tinted with red ink. I know that this is done to fix a defect in the neg, but can anyone give me a little more detail as to how it works? I have a really great neg that unfortunately got a few scratches in an area that would make it hard to spot on the print (damned non-hardening fixer! Never again). I am wondering if this technique is useful in this situation.