Cap diameter - 16.5mm, barrel diameter - 15mm. Thread cat to barrel - custom 13.2x0.8 triple lead.
Thread section to barrel - m10x1. Feed - ink convertor, cartridge. Nib: schmidt nib unit - fh452 - 8.5mm steel gold plated. The fh452 nib unit system works reliably in all situations, even up to an altitude of 11,000 meters which exerts a 750 bar pressure. It comes with an altitude fixation ring and a cap seal. Convertor: schmidt k1/k2 ink converter. Standard package includes: pen, hard pu leather box. Leather sleeve package includes: standard package + leather sleeve.Fabric kimono package includes: standard package + fabric kimono. This item is made of ebonite and steel, melchior, brass.