Gaпa: 'Trip to the centre of the Earth'. The depths of the Earth, like the sky, have since the most remote ancient times, inspired in Man wonder, curiosity and deep interest which has led fantastic visions of the underground world. This refined fountain pen represents the interpretation of a symbolic and fantastic trip to the centre of the Earth. To realize the Limited Edition “Gaпa”, Omas has exclusively used precious materials, like the yellow and white gold 18K and the Omas 'Gaпa Grey” vegetable resin; the Crystal Rock, the Onyx, the Hematite, the Emerald and the Diamond, brillant cut, contribute to enrich and to embellish the body and the cap of the fountain pen. On the bicolour nib, in gold 18K, a precious and refined engraving completes the fountain pen. The Limited Edition 'Gaпa' is available in 30 piston fountain pens.