TWSBI ECO Sky Blue Fountain Pen
Key Attributes
| Brand | TWSBI |
| Model | ECO |
| Era | post-1980 |
| Filling System | piston-filler |
| Nib Material | steel |
| Nib Size | Bold |
| Body Material | plastic |
| Colorway | Sky Blue |
| Condition Grade | mint |
| Rarity | common |
About this Fountain pen
Modern TWSBI ECO fountain pen in the Sky Blue colorway, shown with a transparent barrel and matching blue cap and piston hardware. This collector-oriented demonstrator model features a visible internal piston mechanism and silver-tone trim.
Gallery
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