Platinum Classic Ink 60ml Cassis Black, INKK-2000 15

Platinum Classic Ink in Cassis Black, a 60ml iron gall fountain pen ink that starts purple and ages to black.
Price range: See on Amazon
What we liked
- + Color shift from cassis to near-black gives a unique vintage character
- + Platinum's classic inks are formulated to be gentler than old-style iron gall
- + 60ml bottle offers more ink than many other iron gall options
Trade-offs
- - Final color is muted, which may disappoint anyone wanting a vivid tone
- - Still iron gall, so avoid leaving it in pens or on nibs for long
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