Montblanc 146 LeGrand Solitaire Citrine Gold Plated Fountain Pen 7556 ; Nib M MONTBLANC IDENT 7563. Made in Germany From SOLITAIRE Collection. MEISTERSTUCK CITRINE Fountain Pen 146. NIB Size - M. Three pale gold rings with embossed logo. Piston converter allows optional use of ink cartridges. Gold Plated Clip With Individual Serial Number. Hand crafted 18ct gold nib (M) with rhodium plated inlay. Stainless steel barrel.