Not sure if this has been mentioned here before. Larry Nemecek has made available his original marked-up galley page proofs from the 1992 blue-cover edition of the TNG Companion as a reward for a $500 contribution to the Kickstarter for "Star Trek Continues." He will autograph the proofs if desired, and the reward also includes "a 30-minute phone call with Larry on a Trek topic of your choice." I'm not including a link to the Kickstarter page because it might tend to border on solicitation, but you should be able to find it easily enough if you're interested. It's called Star Trek Continues 2015 "Kirkstarter 2.0."