Callifolio Trio – Bosphorus, 35 ml

Callifolio Bosphore fountain pen ink, a blend of azure and black, produces a complex slate gray, tinged with mauve and blue depending on the density—a misty, refined color. The name refers to the Bosphorus Strait, between Europe and Asia: the shade evokes its shifting skies and gray waters, straddling two worlds.

The Art of Writing:
The Callifolio collection was designed for lovers of beautiful handwriting and calligraphy.
It combines technical precision with the charm of artisanal colors.
Made with water using a unique formula developed in our workshop, our inks offer unparalleled glide and are completely gentle on your writing instruments.

36 vibrant, mixable shades:
From ocean blues to earthy ochres, our range features 36 colors that reveal stunning contrasts depending on your paper.
Their biggest advantage: they’re fully mixable with one another. You can blend the shades to create the exact color that matches your pen.

"Trio" (35 ml) glass bottles:
Our high-quality glass bottles are manufactured in Europe.
Their unique trapezoidal shape allows you to arrange three bottles in a circle on your desk, providing perfect stability so you can use every last drop of ink.

Eco-friendly refills, the green alternative:
In line with our commitment to the environment, we offer refill packs in flexible pouches.
Simply fill your glass bottle and reduce unnecessary packaging.
A safe, non-corrosive formula.

Each bottle is carefully formulated to ensure the longevity of your pens.
pH-balanced: gentle on both metal nibs and delicate reservoirs.
No clogging: the ink remains fluid, ensures a steady flow, and is suitable for even the most delicate nibs.

The Artisan's Tip:
Callifolio inks are watercolor-compatible! Use them with a brush and water in your sketchbooks to reveal beautiful color gradients.