I have received a lot of e mails, educating me, about this "Poster". It is not a poster it is an HK Armorers Chart. I do apologize for this. I did not know that. Thanks for bringing that to my attention. Also many people have told me that, while it may be rare, it is only worth between 150 - 200. I didn't know that either. Didn't mean to offend anyone. Please forgive, I'm kinda new to the forums and don't want to get off on the wrong footing.
Thanks for all the comments