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The Mariner - Deep Blue
Esterbrook / Crane is one of the 713 brands in Inktend's built-in ink catalog.
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Specs
Paper & pairing
Blues and navies are the most broadly "safe" fountain pen colors: legible, professional, and unlikely to raise eyebrows in an office. This ink will behave predictably on most fountain-pen-friendly paper. Cheap, highly absorbent paper (standard copier paper) will dull any ink's saturation and can cause feathering or bleed-through with wetter nibs.
About Esterbrook / Crane
Esterbrook / Crane is a stationery collaboration between two historic American brands: Esterbrook, the pen maker founded by Richard Esterbrook in Camden, New Jersey in 1858 and revived under current owner Kenro Industries, and Crane, the Massachusetts cotton-paper company established in 1801 whose stationery division is known for fine writing papers.
Storing and using the bottle
Bottled fountain pen ink has an effectively long shelf life when kept capped and out of direct sunlight: most inks remain usable for years. The main risk isn't the ink spoiling, it's a pen sitting inked and unused for weeks: that's what causes clogs, not the ink's age.
Frequently asked questions
Similar shades By colour distance
Color shown is a close digital approximation of a typical swatch, not a calibrated color match.