Coit pens or poster pens

Coit pens are American and are becoming increasingly difficult to obtain, there is a British version which is the Automatic pen.  These pens are used for poster work and for writing big letters.

Using oil pastel as a resist

White candle wax as a resist

Two colours of oil pastel

Oil pastel top and candle wax bottom

This Coit pen produces two lines, it's often called a scroll pen

Lines of text could be written in the gap using a conventional nib

It's possible to use the very corner of the nib to write small letters