Cartier Diabolo Black Composite and Palladium Fountain Pen with Sapphire Cabochon Top. 18K - 750 gold standard mark on white gold nib with logo monogram and engraved detail. Numbered 002456. Cartier makers mark on the accent. Measures 5-1/2" x 1/2". From the collection of The Honorable Ned L. Siegel, Former US Ambassador to the Commonwealth of the Bahamas Condition: Good condition. Nib needs cleaning. Not examined for writing. Estimate: $400.00 - $600.00 Domestic Shipping: $32.00 Reserve: $400.00