Express safe shipping over 130 £. No extra fees or customs.


Your Cart is Empty

The anatomy of a fountain pen

August 30, 2017 5 min read

The anatomy of a fountain pen

Discover the parts of a fountain pen 

In 1833 Lewis Edson Waterman created the first fountain pen using the radius of a wheel. Since then, the fountain pen world has evolved a lot in terms of materials and shapes. However, there are always four main parts in each fountain pen: the barrel, the cap, the charging system and, last but not least, the nib.


1.- The body

Nowadays, we can find fountain pens whose bodies have been elaborated with an  immense range of exceptional materials

Sometimes the material in which the barrel is made becomes a hallmark of the brand. For example, the most exotic woods are a distinctive mark of  Graf von Faber-Castell pieces, such as the celluloid known as Auroloid is of  Aurora.

The same is true for Japanese writing brands that manufacture traditional and complex pieces in which tradition and craftsmanship play a fundamental role. Thus,  Nakaya is well-known for its ebonite pieces covered lacquered with Urushi.

In turn, we can distinguish three parts in the body . 

  • The grip sectionThis is the closest part to the nib, where it is inserted (or grabbed in the case of inlaid nibs). Generally, it remains covered by the cap when the fountain pen is closed. In some cases, we find that the grip section has been made with a different material than the rest of the body in order to turn this part into another ornament of the fountain pen. This is the case of  Visconti Van Gogh and  Rembrandt
  • The central part or barrelThe rear section or culotte, generally is made with the same material as the body. On one hand, we find fountain pens where the rear section is a continuation of the barrel, connected with itt. One the other hand, there are fountain pens with a piston filling system that feature a gyratory culotte that allows to charge the fountain pen with ink. 


2.- The cap 

This part not only protects the nib when the fountain pen is not being used, but it also prevents the ink from dryingGenerally the cap presents ventilation holes to eliminate moisture condensation inside. Normally, it is made of the same material as the body, however some brands such as  Graf Von Faber Castell, create caps in a different material given their fountain pens a special aesthetic. 

Usually, the cap includes different components that embellish the piece: 

  • Lip: the inner part of the cap that allows close the piece properly. 
  • Finial: close to the top of the cap, where the clip is usually inserted. This part is especially important in the collection  “Lord of the Rings Eye of Sauron” by Montegrappa, since  these pieces present a gold-plated brass ring which can be unfastened and removed from the cap. 
  • Top: Integrated in the finial, is the top of the cap that we see if we put the fountain pen lengthwise in front of our eyes. This part is generally used by the brands to include some decorative element, such as a detail of the limited edition it belongs to, like the  Scribo Letteratura, or the brand's logo, as  Twsbi does
  • Clip: Often made with the same material of the rest of trims of the fountain pen. Initially it was designed as a tool to hold your pen, but nowadays it is also a distinctive sign of the brand, as it happens in  Pelikan pens

As a matter of fact, during the Second World War, the American army banned the wearing of any element that could be confused with the insignia of their uniform. Therefore,  Sheaffer created smaller clips for their fountain pens so that they are known as  Military clips

Clips are so popular that one distinctive feature of the Cigar collection by the  Japanese house Nakaya is the lack of them. Nevertheless, they have designed the  rolling stopper for those who want to add a detail to these minimalist pieces. 

We can find different cap closing systems, the most common are: pressing, gyratory, magnetic and screw on caps. 

Although the cap plays a quintessential role in the design of the great majority of fountain pens, not all of them have one. We refer to  retractable fountain pens, functional writing items that offer the convenience of a click pen without renouncing the smooth writing experience of a fountain pen. The brands that stand out for having well developed these complex and sophisticated mechanisms are  Pilot with the  Capless line,  Platinum with  Curidas collection, and finally  Lamy with the model  Dialog 3


3.- Charging system 

It is the part of the fountain pen inside the barrel, which stores ink. Depending on the size and model, the  charging system of the fountain pens vary from ink cartridges to converters or piston fillers.


4.- Nib 

Finally, the nib. It is the most important part given that it will allow us to write. It can be both made of or plated in different materials such as: stainless steel, gold, palladium or ruthenium. 

Furthermore,  among gold nibs we can find different types of caratages:  Nakaya and  Platinum collections usually feature a 14K gold nib,   Montblanc and  Montegrappa Special Editions use 18K gold nibs,  Sailor is well known for its 21K or 24K nibs , and finally  Visconti chooses 23K palladium nibs for more of its  Limited Editions and some of their regular lines like the  Homo Sapiens or  Divina lines.  

Inside the nib, we can find different parts:

Parts of a nib


  • Slit: the very thin cut running from the breather hole to the tip of the nib that carries the ink from the feed to the tip and absorbs ink from the feeder allowing us to write. It is also known as channel of ink and air. Sometimes, we can find more than one channel,  more than one, as in the case of  music nibs.
  • Feeder: normally is a black part made of plastic or ebonite; whose design is similar to a toothed comb. Its main function is to channel the ink from the reservoir to the nib in a way that it does not drip but flows continuously. It's thanks to the grooves at the bottom of the feed channel that the ink can descend by capillarity instead of descending by gravity. The principle of capillarity is the key which turned the fountain pen into a revolutionary invention. 
  • Under the nib, we also find the fins, whose main function is to regulate the ink flow which can vary depending on factors beyond the control of the manufacturer such as: temperature, cleaning or the way of writing. Thus, the fins collect the excess of ink and to avoid the dripping, and provide extra ink when it scarces. 
  • Breather hold or vent hold: a hole in the nib designed in order to allow air to go inside the nib and prevent it from breaking when we overpressure it while writing. When the ink comes out of the reservoir, a vacuum is created and if it is not regularly filled with air, the ink won’t flow.
  • Tines:  Side parts in which the nib is divided by the channel of air and ink.
  • Tip, also known as Iridium due to material of which it used to be made. This is the part of the fountain pens that is in direct contact with the paper. You can find different tip shapes that will create a distinctive point to each stroke. Thus, some of the most special ones, and chosen by calligraphy lovers are the nibs stubs and italics that present a straight tip. 


Understanding the functions of each component, will allow you to  choose the option that best suits you, or make the best out of the fountain pen that you already have. 
If you need more information just contact us, our team will be glad to help you. 

Leave a comment

Also in News

Aurora fountain pens
Aurora fountain pens

January 21, 2021 4 min read

Read More
Platinum: special pieces

January 14, 2021 3 min read

Read More
How to clean a fountain pen
How to clean a fountain pen

January 08, 2021 3 min read

Read More

Place your order with full confidence!.

The shipping time of this product must be confirmed with the brand. Fill in the form below if you want us to confirm you the estimated delivery date.
★ Our Reviews

Let customers speak for us

1134 reviews
Looked good on delivery, now looks great with black steel !

I'm really pleased with my new bronze metris...I hadn't seen one in real life due to lockdown but was pleased with it when it arrived. The blue face is really dark...almost black.....but contrasts really well with the bronze case and numerals. The standard leather strap was a little disappointing in colour and fit but £25 for a black steel bracelet and it now looks and feels great!!

I love this pen...perfect weight. Perhaps I would like a more chunkier one soon....still experimenting before i make a bigger purchase

Citizen Promaster NY0071-81E

As a large fan of dive watches, this mechanical promaster variant in titanium, does not disappoint. Exceptionally light, form, fit and function, absolutely fantastic. Much better attention to detail ( indices and rotating bezel alignment with chapter ring) than some Seiko comparable models.
Seemingly on paper a large watch, wears very well, not conspicuous at all in my 5 Ft 7 inch opinion. Great lime, long lasting and running at constant +10 seconds a day.
Definitely recommend this watch and the excellent customer experience of Iguana Sell.

Visconti Van Gogh Wheatfield with Crows Set

A very nice fountain pen feels very nice in the hand, comes well presented with a bottle of ink to start you off. I was kept fully informed of the progress of my order and as such I have ordered a second fountain pen.

Avi-8 P51 Mustang

This is my 2nd watch purchase from Iguana Sell. Due to unfortunate circumstances beyound Iguana Sells hands, I was kept in contact regarding the delivery of my P51 Mustang watch. Heavy snow as well as teething problems due to Brexit delayed delivery, but I have become quite patient over the past few months. The watch is amazing Avi-8 have surpassed themselves. I love the aviation theme previously buying their automatic Spitfire watch.