The Adcock Sheffield Series No. 409 dip pen nib has an arrow or chevron shaped breather hole. This is a vintage nib, and may have some minor surface rust which can be removed and does not impact performance.
The Adcock Sheffield Series No. 409 dip pen nib has an arrow or chevron shaped breather hole. This is a vintage nib, and may have some minor surface rust which can be removed and does not impact performance.