The steel nibs on the Caran d'Ache Dunas write smoother than most gold nibs I've tried, unfortunately they've discontinued this model. : r/fountainpens
CARAN D'ACHE DUNAS * stilografica * sfera * roller * matita 07 EUR 70,00 - PicClick IT
Caran d'Ache - CARAN D'ACHE 'DUNAS "Penna a sfera nera - Catawiki
Penna Stilografica Caran d'Ache Dunas Alluminio. - La Stilografica Shop