I've recently become interested in collecting old NES games. I'm trying to find an original NES Legend of Zelda game CIB. However, I'm having trouble distinguishing different versions of the game. All of the LOZ games have a box, owner's manual, cartridge, sleeve, styrofoam, and a map with secrets. However, when I search on eBay for Legend of Zelda games (CIB), I get several variations. Namely, different games vary on extras in the box (i.e. a Nintendo Power poster, an invitation to subscribe to Nintendo, an invitation to join the Nintendo fun club, etc.) According to Wikipedia, the original NES version had the invitation to join the Nintendo fun club, but I really have no idea if that's correct.
My question is: Is there some online database out there that details what the package contents of different Nintendo video game releases are which is used by serious collectors?
I've tried extensive Googling but to no avail. I found one that looked promising - www.retrocollect.com. It listed several versions for NES' Legend of Zelda. Unfortunately, it really didn't contain any details at all of versions like the original North American release.