Brause Ornament Nibs

Each nib has a fixed reservoir on top and fit in a standard pen holder or a Brause 1616 Ornament Pen Holder.
Ornament nibs come in nine sizes, which conveniently are in millimetres: 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4 and 5
They are used for titles and ornamentation.