I have one of the M200 demonstrators with clear dome on top of the cap and the + support inside. Single cap-band is marked W. Germany, so presumably we're looking at 1980s sometime - can someone give me a ballpark on when they made this varietal and how common they are? Were they made to be demonstrators (show them innards), or just something that was pretty and unusual (like the translucents today)?
Clear pens drive me mad. Why don't they make clear ink that doesn't mess 'em up?
Thanks!
Calluna