Diamine Registrar's Blue Black Ink (30mL)

Diamine Registrar's Blue Black Ink delivers a sophisticated balance of deep blue with subtle black undertones, ideal for professional documents and archival writing. Engineered for fountain pens, it offers smooth flow and reliable performance without clogging.

This ink provides excellent permanence and water resistance, ensuring your important notes and records remain crisp and legible over time. Perfect for registrars or anyone requiring a timeless, durable ink with elegant color depth.