Ogilby, John, illustrated books, [289]
O’Kearney, John, Irish printing by, [243]
Opera nova contemplativa, Venetian block-book, [20] sq., [29]
Oppenheim, book-decoration at, [193]
Ortuin and Schenck, printers of Roman de la Rose, [160]
Os, Pieter van, early printer at Zwolle, [72]
Ostendorfer, Michael, illustrations by, [190]
Oswen, John, printer at Ipswich and Worcester, [229] sq.
Overton, John, printer (?) at Ipswich, [226]