yes they are nitrogen purged
Just looked on the bottom of the scope --- NITROGEN GAS VALVE.
Cool. <img src="/ubbthreads/images/graemlins/cool.gif" alt="" />
Actually, it says 'PORT'.
And, it also says 'JAPAN'.
I guess that's good! <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />