Description Colorverse Project Constellation a Tau fountain pen ink is a deep shade of orange that is part of the Special Edition Project Constellation II collection. Colorverse Project II fountain pen ink comes in a Colorverse's signature 65ml glass bottle with an unusual shape, wider body with a narrow neck, and is made in South Korea. Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side. We offer Free Shipping on all orders over $50 for US customers, and for orders over $250 for our Canadian customers.