Value of Louis Cartier fountain pen?

[dialbo]

I got this pen as inheritance long time ago. I have tried to figure out what the value might be, but it's hard to find out. It says Louis Cartier 18k gold plaque or g. The original box is lost. I really can't estimate the value. I would be very greatfull if anyone out there could help me out.

[dialbo]

I knew it was hard, but it should be that hard... was a suprise. Anyone, what do you think?

[Playero]

check ebay they have one or two every week