TWSBI Diamond 50 Ink Bottle Expand

TWSBI Diamond 50 Ink Bottle



  • Glass ink bottle
  • Internal reservoir
  • Unique filling mode

More details

In Stock

£ 24.99

This silver TWSBI Diamond 50 ink bottle features an internal reservoir for easy filling even when the level in the ink well is low (compatible with all fountain pens). A unique feature also allows for the barrels of TWSBI Diamond series piston-filling pens (ie without nib unit fitted) to be filled by connecting directly to a filling tube. This method can also be used for filling standard size converters.

Note that this is the version with aluminium parts.

To fill your TWSBI ink bottle check out our collection of bottled fountain pen inks. We also have Herbin 100ml plastic refill bottles and a range of The Writing Desk ink also available in 100ml plastic bottles.

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TWSBI Diamond 50 Ink Bottle

TWSBI Diamond 50 Ink Bottle

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Nib choices for fountain pens
If we show the pen with medium nib in stock it means we have stock of that pen. If you select another nib size and the website doesn't say "in stock" we can usually supply that pen immediately as we keep extensive supplies of nibs from all our manufacturers