My favourite writing instrument. It is so flexible and, if cut properly, can be more adaptable to one's writing style than any modern fountain pen. In fact, I used to write and sign many official documents with the 18thC Bion pen. There is so much to write on the quill that I have to restrain myself or the whole catalogue would consist of one entry!
Many scholars think that the Romans may have invented it, due the importance of geese, on and off the plate, and the shape of many bronze pens from Vindolanda etc. The earliest representation of a quill is in the Basilica of San Vitale in Ravenna, Italy, I will leave the individual items to take up the story, but please do see our video: