TWSBI Diamond 50 Ink Bottles- Black Hardcover All nibs are manufactured in

All nibs are manufactured in Germany

Country of Origin: Japan

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By using original colors instead of mixing with other colors

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TWSBI Diamond 50 Ink Bottles- Black Hardcover All nibs are manufactured inTWSBI Diamond 50 Ink Bottles Black TWSBI Diamond 50 Ink bottle: designed for every type of fountain pen and specific upper cap design for Diamond , 530, 540, 580, Mini fountain pen. No ink inside The TWSBI Diamond 50mL ink bottle is a glass bottle with anodized aluminum top that is the perfect accessory for any fountain pen addict! The bottle allows for easy refilling of your fountain pen by offering an upper reservoir that fills with ink when you