How much is a fountain pen worth?

A fountain pen is a nib, a filling system, and a name on the barrel. A bent nib and a cracked section are the damage. The brand is the start, not the price.

CollectiblesThriftingJournal

Fountain pens from Parker, Sheaffer, Waterman, Pelikan, and many smaller makers show up in desks and estate boxes. The pen is identified by the name on the barrel, the model if it is marked, the nib’s size and material, and the filling system. A common later cartridge pen is a user pen. A earlier pen with a gold nib can be a better pen and still be common. The nib is a small piece of metal that is easy to spring, and a sprung nib writes badly. This page will not price a Parker 51 or a Namiki. It will tell you to read the imprint and to look at the nib slit.

Filling systems leak. A pen you have not filled is untested. Ink is evidence, not a disaster, unless it is a crumbled sac you squeezed into the barrel. The buying-used guide fits a pen you will write with. The flip fits a pen you have identified. A gold-colored nib is not automatically gold. The imprint on the nib says 14k or it does not.

What to look for

Imprints
The barrel, the cap band, and the nib. Photograph the nib so the mark and the size are readable. “Iridium point” on a steel nib is a common tip description, not a statement that the nib is gold. Read the whole line.
The nib
The slit should run to the breather hole and the tines should align. A sprung nib is bent open and will not write a fine line. A bent tipping is damage. Do not “fix” it with pliers. Look with a loupe or a phone macro and stop.
Cracks and the section
Caps crack at the lip. Sections crack where the nib unit sits. A crack is structural and it leaks. Show it. A chip in the plastic of a common pen is condition. A crack in a valuable pen is the listing.
Filling
Lever, button, piston, aerometric, or cartridge. If you know how, a water test shows whether it fills. If you do not, say untested. Do not force a lever that is stuck. The sac inside may be the original and it may already be dead. A dead sac is a repair.

What moves the price

Model and nib
Comp the model and the nib you can read, in a condition like yours. A gold nib in a common pen is still that pen. A steel nib in a pen someone called gold is a misdescription. The imprint decides.
Working
Writes, untested, or needs a sac. Those are the three words. A pen that writes is a user. A pen that needs a sac is a project with a repair cost. Subtract that cost from your hope before you buy the desk lot.
Condition of plastic
Discoloration, a chewed cap, brassing where gold fill has worn, and an engraved name. An engraving is a monogram. Disclose it. Brassing on a gold-filled cap is wear-through, the same idea as the jewelry page.
Completeness
Cap, clip, and nib. A pen without a cap is a desk pen or a parts pen. Say so. A box is extra and often missing. Do not imply one.

Where to sell

eBay and pen boards
Imprints in the photos, nib macro, and an honest filling note. Buyers of pens know the models and will see a sprung nib you called “flex.” Do not call a sprung nib flex. Flex is a grind. Sprung is damage.
Local
A handful of common pens is a lot. Pull any pen with a clear gold-nib imprint and a sound section before you sell the cup as one price.
Write with it
A working user pen, bought under the price of a new pen you would actually use, is a good buy. The alternative is a new pen at a shop. Compare those. Do not compare a sticky lever-filler with a fantasy catalog price from 1940.

What a photo can settle

Capped, uncapped, the barrel imprint, and a macro of the nib. Worth can read a brand on the barrel. The nib imprint and the slit are the condition and the metal, and they need the close frame.

Questions

Does 14k on the nib mean the pen is valuable?
It means the nib is marked as 14-karat gold. The pen around it may be common. Comp the model. A gold nib can be sprung and then it is a damaged gold nib, which is not a small problem, because the nib is the pen.
The lever will not move. What now?
Stop. Forcing it can tear the sac or crack the barrel. The pen is untested and possibly in need of a restoration. Price it that way or leave it in the drawer.
Should I soak it?
A pen with dried ink may need a careful soak of the nib unit, and some plastics and some filling systems should not be soaked. If you do not know which, do not soak the whole pen. Water in a sac or a mechanism is how a project gets worse.

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