We are all friends and we share ID's with all including posting ID's the BB. There are not many true illegal collectors. If you are collecting illegals, welcome to the group.
This siht was put up by two illegal collectors and many illegal collectots contributed to ir. It was meant to help all collectors find ID's.
Much more is coming to the site.
http://www.preservinggaminghistory.com/

When many of us make a find, we mail out chips to each other. No charge and expect nothing for it. I got several care packages in the last month.

I don't know anyone writing a book on N IN. If I did I would have told yopu.

My first reply was tips on finding ID's and neant to help you if you were so inclined to look.
Digging for an ID and finding it is very rewarding.