Hi everyone, new to the forum and first time poster. I recently found a copy of Chrono Trigger with the box and manual. The manual is still sealed and appears like it may have the map and maybe poster folded inside of it but I can't tell. I was going to sell it but I'm not sure if I should open the manual to see if they're in there or if it's better to leave it sealed. Any vintage guys out there know what is best?