TWSBI Diamond 580ALR Fountain Pen - Prussian Blue, 1.1mm Stub Nib Lamy ABC Pens Noodler's Periwinkle ink colour is

Noodler's Periwinkle ink colour is modelled on the color of the blue curve of a periwinkle snail’s shell

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TEST 12: ELECTRICAL RESISTANCE

TWSBI Diamond 580ALR Fountain Pen - Prussian Blue, 1.1mm Stub Nib Lamy ABC Pens Noodler's Periwinkle ink colour isThe latest special edition for 2020 is the stunning TWSBI 580AL R in a glorious prussian blue colour. A popular model this new colour is sure to be sort after in years to come with its sophisticated and elegant hue. TWSBI has taken everything they have learnt as premium fountain pen manufacturers and applied it. The Diamond 580 is the result. WIth the 580 comes an improved grip and barrel section, an increase in the ink volue by 30% to a massive 1.