I have not seen this one posted, although many might own the book (I don't). Tons of info on slip joints. Would be great for someone new to the style. I've been studying them a while, but still enjoyed it. I hope you do too.
Official Price Guide to Collector Knives By C. Houston Price, Mark D. Zalesky
http://books.google.com/books?id=ko...resnum=10&ved=0CGgQ6AEwCQ#v=onepage&q&f=false
Official Price Guide to Collector Knives By C. Houston Price, Mark D. Zalesky
http://books.google.com/books?id=ko...resnum=10&ved=0CGgQ6AEwCQ#v=onepage&q&f=false