Speedball
Crow quill pens have a cylindrical body that only fit a crow quill nib, which generally draws finer lines than a standard nib.
for #102 nibs - Durable plastic holder is 5" long and fits crow quill nibs #102, #107, and #108.
Speedball Crow Quill Dip Pen and Nibs - This is a ...
® Speedball is a registered trademark.