Parker's blue-black, which reads on the page as a dusky blue. A plain dye ink that dries in twenty seconds and comes in a five-pack of cartridges for every Parker.
The maker, the year, the line, and the language of the name itself.
The primary read, the pool at the trough, the sheen at the angle, and how much the colour shifts as it dries.
The liquid itself: pH, lightfastness, how it behaves in the bottle and inside a demonstrator.
Wetness, saturation, sheen, shading, and how feathering and ghosting test on standard cream.
Seconds to a smudge-free pass on the standard cream paper.
Where this ink belongs in the cabinet: by nib, by paper, by occasion.