The serial numbers on an MB don't tell the user very much and even for Montblanc they have only limited value. That serial number was even used on other versions of the roller ball. No, I don't think there is any way to check them without. I've rechecked it and unfortunatelly it does not seem to be an original one. Based on the deterioration and looking at the clip. I've earned an used Meisterstuck Montblanc Ballpoint Pen.
