Given that they're offering a $59k reward for their missing ledger I'm curious if anybody is going to try to make a fake ledger instead of a fake guitar.
Would not be surprised; they found a forgery factory somewhere in the boondocks a while ago that also forged collectibles like posters (https://news.ycombinator.com/item?id=23784998).
Of course, if it's about the contents then a forgery would be impossible to make.