Liberum Volucris Titanium: A Compact Vacuum Filler Fountain Pen
Published · 2 min read (estimated)
Liberum Volucris Titanium is a pocket fountain pen with vacuum filling, a green ink window and a #6 stainless steel nib. Its capped length is approximately 120 mm; its weight is approximately 41.5 g in total or 28.4 g with the cap removed.
Titanium body and pocket format
The silver-coloured titanium body gives this version a different appearance and lower listed weight than the brass Volucris. Capped length is a carrying measurement. For writing comfort, compare uncapped weight, grip position and the dimensions shown on the titanium product page.
Vacuum filling for bottled ink
The built-in mechanism draws ink from a bottle of fountain pen ink. The ink window allows a visual check of the remaining supply. No measured reservoir capacity, number of pages per fill or leakproof claim is made here.
For help with the filling routine or maintenance, contact Liberum. Use instructions for this model rather than assuming every vacuum filling design operates in exactly the same way.
Installed nib and JoWo #6 compatibility
The standard installed unit combines a #6 stainless steel nib and a plastic feed. Choose Extra Fine, Fine, Medium or Broad. Liberum has confirmed assembly compatibility of the threaded housing with JoWo #6 nib units. This is a compatibility statement, not a claim of affiliation or a guarantee that every #6 nib will fit.
Optional extra ebonite-feed nib unit
The additional option supplies one separate stainless steel nib unit with an ebonite feed. It is included alongside the standard installed unit. Choose None if you want the standard pen alone. The product page shows the total price for your actual selection.
Titanium and brass at a glance
| Detail | Titanium | Brass |
|---|---|---|
| Capped length | Approximately 120 mm | Approximately 120 mm |
| Total weight | Approximately 41.5 g | Approximately 66 g |
| Uncapped weight | Approximately 28.4 g | Approximately 42 g |
| Ink window | Green | Clear |
| Filling system | Vacuum | Vacuum |
Explore pocket fountain pens, compare the brass model, or read the size and writing-weight guide. The linked catalogue is the source for these approximate measurements.
About this guide: Published by Liberum, the seller of Volucris pens. AI tools assisted with drafting. Product facts are based on the linked catalogue and brand confirmations; this is not an independent hands-on review or a laboratory test. Photographs are supplied by the brand. Checked on 2 November 2026; specifications and available configurations can change.