Ouch that really sucks, I'm sorry Doesn't help you now but in case anyone else is thinking of getting into book collecting, a great start is A New Introduction

Ouch that really sucks, I'm sorry Doesn't help you now but in case anyone else is thinking of getting into book collecting, a great start is A New Introduction to Bibliography by Philip Gaskell. It goes over centuries of the techniques and technologies used by printers which helps a lot with spotting fakes. It goes over fonts, paper, pigments, and so on. Lots of other little things to look for like paper weight and smell (the breakdown of lignin which smells faintly of vanilla) A $20 WiFi microscope off Amazon that works with iOS and a cheap LED light source works wonders. I have a collection of cheap old books no one wants from a bunch of publishers across the time period I work most with as a control. Note though that nothing stops someone from printing on old stock - printing presses are very simple tech that's easy to utilize for high value forgeries. That's where it can get really dicey and you have to start doing destructive chemical analysis on the pigments.