I wish to thank Tom Silverbörg for the Campanini and Zerola pictures.
I wish to thank Helmut Krautschneider for two pictures (Breviario, Dolci).
I wish to thank Imogen Norcroft and Daniele Godor for the Corelli and Spiess pictures.
I wish to thank Marius Vlad for his picture.
Reference for Bonisolli picture.