according to the Learning Journal authors Aaron Keilhau and Nina Schwarting

available in many colors

Leaf green

Kaweco Bronze Sport Fountain Pen

Bound with glossy red staples

Dominant Industry Bottled Ink 030 Bleuze Hadancourt squared according to the Learning JournalBleuze Hadancourt 030 Dominant Industry inks are made in small batches in their Paju, Korea workshop. The inks are crafted to capture light and pigment with unique effects and unexpected colors. "Bleuze Hadancourt" is inspired by Alphonse Mucha's art nouveau paintings and commercial illustrations. Ink Details Suitable for fountain pens, calligraphy, and drawing When filling a fountain pen with this pearl ink, be sure to clean it thoroughly after use