Karte Treptow, Deutschland: Stadtplan, Karte und Routenplaner von hot maps. Special Edition Muses Maria Callas Rollerball Pen. Montblanc Special Edition Muses Maria Callas Rollerball Pen, 129565 This Montblanc Muses Maria Callas Special Edition pen is dedicated to one of the most charismatic sopranos of the 20th century and appreciated style icon. With her talent, passion and personality, she embodied a certain ideal of the operatic diva. The edition highlights one of her favourite colours, turquoise and made in the precious resin of the cap and barrel. Reflecting Maria Callass graceful beauty with this pen it is a slender, elegant silhouette. A beautiful added addiction In memory of her sea encircled Greek homeland, the platinum coated clip is decorated with a stone whose colour is reminiscent of the radiant turquoise blue of the Aegean Sea.