Montblanc Writing Instrument Meisterstuck Geometry Solitaire Champagne Gold LeGrand Rollerball 118102. The Meisterstuck Solitaire Geometric Dimension was born of the desire to unite Montblancs classic design with unique materials. This writing instrument, engraved with a three dimensional geometric pattern with optical effect in a sophisticated champagne tone, features a champagne gold coated clip and three champagne gold coated rings embossed with the Montblanc brand name. Finished with the Montblanc emblem, it appeals to ones individuality.