Heron is part of the Keystone Formula fountain pen ink, our traditional dye-colorant writing ink. The 45mL volume will provide approximately 56 standard converter refills assuming a 0.8mL draw. We manufacture this product in Pennsylvania with domestic and imported ingredients. Writing sample and color swatches were produced on Tomoe River
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so elegant and beautiful! this is one of my favorite colors and birmingham pen co inks r always amazing quality
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Louisa · November 30, 2023
Ohh wow, the depth of this color is amazing! Can't wait to actually ink a pen with it!
Yarboral · December 3, 2023
I love the color! Be careful what paper you use though, as it can bleed.