Cartier Diabolo Black Composite Ballpoint Pen ST180003

Cartier Diabolo black composite ballpoint pen with gold plate accents and blue resin cabochon on top. Model #ST180003. Serial #244126. Also includes original red Cartier pen case. Pen weighs 29.3 grams. Pen case weighs 174.8 grams. Pen is about 5.25" long and 4mm - 13mm wide. Pen case dimensions are about 7" x 3" x 1-1/8". Excellent estate condition. Gently pre-owned.