Hello, I'm new to the forum and was wondering if someone could help me verify if my montblanc pen is real. The plastic glows red under light. It has a pin on the cap "GV1084802" has GERMANY on cap, under the clip it says PIX. Their was a rubber seal on the cap(rollerball pen) what concerns me is the box, the pen I bought was a rollerball 75th anniversary, used. The guy I bought it from got it from a pawn shop(he owns it) the box had a black stretchy strip to keep the pen in the case without moving. It came with a montblanc gaurentee, but it wasn't stamped, as well as the warrantee wasn't stamped. Are their any indicators that I received a fake. Thank you so much, in advance.