My search for a perfect fountain pen ink galloped out of control — fountain pen ink research is a fantastic rabbit hole to go down — and suddenly I found myself confused about what inks I have in my ink collection and what they look like. So in an effort to systematize I made ink sample cards, copying the look of the ink sample cards that Jane Blundell shows on her website.

The cards I made show how each ink write (with a dip pen) on one particular paper (I used Strathmore mixed media). They also show how the ink look when applied with a brush to a larger area, and they show how the ink react if I brush on water after the ink has dried. This last part adds valuable data, but is a design challenge with ink sample cards because it can all easily look like a messy smudge. I think Jane Blundell solved it beautifully, and the ink cards with inks that do not resist water actually look great, too.

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Notice how the smudge — showing that the ink is not waterproof — does not ruin the look of the ink sample card.
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Noodler’s Ink has an invisible ink called Blue Ghost which is only visible under UV light. If not under UV light, this card looks like I forgot to apply the ink sample. Blue Ghost is also fairly water proof.