Opus 88 Opera - Grey Arrow Wire Bound Van Dieman’s Neptune’s Necklace from

Van Dieman’s Neptune’s Necklace from the Underwater series is an unsaturated mustard yellow ink with medium shading

Robert Heinrich Herman Koch was a celebrated German physician and pioneering microbiologist

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Kyoto Kyo-no-oto 09 Sakuranezum is a dark dusky purple with low shading

Opus 88 Opera - Grey Arrow Wire Bound Van Dieman’s Neptune’s Necklace fromThis large fountain pen features a semi transparent grey acrylic barrel and a cap that features intricate diamond cut accents under a smooth acrylic finish. The pen is an eyedropper filler with a shut off valve mechanism designed to prevent ink from leaking or drying up. To fill, unscrew the section, fill with the included eyedropper, and replace section. To write, simply unscrew the end blind cap, which releases the middle piston rod's shut off