Cartier. Must de Cartier Trinity Fountain Pen A Must de Cartier Trinity fountain pen, the barrel and cap finished in gold-plated barleycorn pattern, a finely textured surface treatment that lends the piece both visual depth and a pleasing tactile quality. Inspired by Cartier's celebrated Trinity collection, the model translates one of the Maison's most enduring jewellery motifs into an elegant writing instrument. Produced during the highly regarded Must de Cartier period, the pen reflects an era when Cartier successfully extended its distinctive design vocabulary beyond jewellery and watches into luxury accessories. The barleycorn finish, combined with the refined proportions of the model, creates a writing instrument of unmistakably classic character. Fitted with a medium (M) nib, the pen offers a smooth and versatile writing experience suitable for everyday use. Model: Must de Cartier Trinity Type: Fountain pen Finish: Gold-plated barleycorn pattern Nib: Medium (M) Condition: Perfect condition. Accompanied by: Original Cartier presentation box. Shipping: Shipped worldwide with tracking.