Luminous Sapphire - Briolette Collection Nib:F whose design was created from

whose design was created from a 70s Kaweco advertising

as he writes in the Journal of the Royal Society of Medicine in 2003

Caramel Brown

available nib width - EF

Luminous Sapphire - Briolette Collection Nib:F whose design was created fromThe Luminous Sapphire fountain pen glows beautifully in a dark and semi dark after an hour exposure to light. A sustained vivid deep blue glow lasts for up to 12 hours, fading over time. The fluorescent luminous paints used in the pen are completely free from radioactivity and any potential hazards. Long facets covering the pens body gives the pens specific shape that prevents it from rolling and enables the true color and brilliance of the material