Hi,

How do I fix a crack in the polystyrene of my dark chocolate brown Platignum Silverline? Or is it not polystyrene at all? What sac size does it use? It has a 5.35 MM section nipple. Does anybody know how old this pen is? This pen is an aerometric with a brown cap with a metal silver-coloured two mm cap band and metal jewels on the barrel end and cap top. There is a vent hole on the left side of the cap.

Dillon