Large Demonstrators

Brause Rose Large Demonstrator



Clear demonstrators are attractive clear pens that let you see into the pen and keep track of your ink quantity. 

  • Provides a large ink capacity
  • Use any ink or paint
  • Crystal clear, keep your eye on the remaining volume
  • Piston filling mechanism
  • Measures 5.25" uncapped, 5.5" capped

This pen contains a Brause Rose nib and matching feed. You can replace the nib and feed easily - slide out the old and insert the new. You can use other nibs listed below.

Our large demonstratrors use a piston device to fill and empty the pen. This keeps your hands clean nd lets you keep track of the color ink you are using, how much is left in the pen, and switch inks quickly. These pens get their name "demonstrator" because they demonstrate the inner workings of a fountain pen.

You can add Brause Rose nibs to your order.

View all our Brause Rose pens.

With or without overfeed?

You can order this pen with or without an overfeed. The overfeed extends the width and range of lines you can draw. It rests above the nib, stores more ink between the nib and overfeed, controls the spread of the two tynes, and lets you draw wider lines for a longer time. Read more about our overfeeds.

The version without the overfeed is shipped unless you select the version with an overfeed.

You can remove the overfeed if you don't want to use it. You can replace the overfeed with a spacer. You can slip overfeeds and spacers in and out.

Change your flow rate

This pen ships with the Standard Flow Feed, which works with most popular drawing inks and paints. You can order the Rich Flow Feed, which is designed for especially thick inks and paints, such as traditional India ink and acrylic paint. You can also order the Thin Flow Feed, which is designed for use with thin fountain pen inks that artists enjoy, such as De Atramentis Document ink. 

We suggest you try the standard flow feed first, and if that doesn't work, step up to the rich flow feed.

Compared to our black pens . . .

Clear Demonstrators look better, you can see the volume of ink and paint that remains, and they are easier to fill, but they don't work as well with artistic media. If you leave India ink and acrylic paint inside piston filler pens, you run the risk of the media drying out inside the reservoir. When this happens, you have to clean out the reservoir. The reservoir is a sealed compartment that takes several steps to access. We describe how to do this in the user information. We even provide a tool that helps gain access.

Other nibs you can use

  • Slip in the Zebra Manga G and our Sketch nibs as well as other Brause nibs, some Osmiroid nibs, and the Hunt 22B, 56 and 101 nibs
  • Use our Nikko/Tachikawa feed to use those nibs as well as the Principal nib
  • Use an adaptor to draw or write the crowquill or Gillott 303 nibs

What you get in this package

  • One large Clear Demonstrator piston filler fountain pen 
  • One Brause Rose nib
  • Matching feed
  • User instructions

For more info . . .