The other day, I was trying to explain to my Dad why I was so excited that we were getting the new TWSBI Diamond 50 Ink Bottles. He owns a Diamond 540 fountain pen, but he didn't quite get it. In his words, "Wait, a $25 ink bottle and it doesn't come with any ink!?"
So I had to demonstrate why this bottle is so cool, yet functional, especially for someone that owns a TWSBI Diamond 530/540 pen.
Highlights from the video:
- Taking apart the Diamond 50 ink bottle and explain the idea behind the design.
- Filling the ink bottle with your choice of fountain pen ink.
- Filling your fountain pen the conventional way, using either a converter or piston mechanism.
- Filling your TWSBI fountain pen using what I refer to as the "express method."