Koster



Blades NT gives the translation of the Reverse as: "The Art of Printing, now three centuries old, invented by Koster with the bark of a beech tree in the Haarlem Wood, contemplates its father's portrait on this Medal and joyfully salutes his manly countenance. They are destined to immortality so long as they world lasts."

He goes on to describe the reverse as showing "... an open book upon which appears "Spiegel ons Behouden," the title of a book said to have been printed by Fust and Gutenberg with the types stolen from Coster."