The Principal Nib made by Leonardt is a copy of the famous Principality nib, which is appreciated for its exquisite behavior as a flexible dip nib. Original Principality nibs are now found on auction sites like eBay for a high price. There are other attempts to copy the Principality nib, but all of them unsatisfactory. A group of calligraphers approached Leonardt with their request for a more authentric rendering, and Leonard provides this nib, which is very popular.
We provide these pens that contain Leonardt Principal nibs: