TWSBI Diamond 50 inktflacon AB met de bijbehorende garantiepapieren Pen tip:Fine (F) met de bijbehorende garantiepapieren Hofkwartier groen is vernoemd naar de authentieke buurt Hofkwartier This ink bottle allows you to fill your fountain pen even when the bottle is almost empty but standard converters can also be directly connected to the inner cap and can thus be filled easily and cleanly