I would like to express my thanks to Sam Fogg for bringing this manuscript to my attention and to Will Kwiatkowski for his considerable help with identification of the illustrations and of dispersed pages from the manuscript. I have greatly enjoyed sharing the thrill of discovery with Messrs Fogg and Kwiatkowski. In 2008, Kjeld von Folsach. Director of the David Collection, Copenhagen, generously allowed me to study the manuscript again with the intention of publishing this article. I am very grateful to him, Joachim Meyer, and their colleagues for their hospitality and encouragement.