A little bit more info on it... my coworker showed it to me and it appears that it was faxed over and it was indeed because he played IRS on the air after it leaked. The letter actually specifies 'IRS'. I would say the letter is in good condition, the paper is a little wrinkled but he did not fold it.
Sort of a unique piece of GNR history. He is completely open to selling if anyone here is interested or if you are not interested but think it might actually make some money he will put it on eBay. Just looking for feedback at this point.
Worth more with the name intact maybe $25-$50