Mont Blanc Collectable Pen signed numbered semi precious stone

Pictured is a Mont Blanc Collectable Pen. The pen is 4 1/4" long has original ink cartridge present signed and numbered with dark brown either There is a brown semi precious stone on pen clip which is tanzanite, citrine or spinel per gem tester. Ink is black. Original box included The pen is signed Mont Blank KN2498899 Germany Condition: Pre-Owned No damage noted