Source
Needham, Twelve Centuries... (1979)
Paul Needham (1979), Twelve Centuries of Bookbindings, 400-1600, New York; London, Pierpont Morgan Library; Oxford University Press.
Additional Reference
p. 57
Paul Needham (1979), Twelve Centuries of Bookbindings, 400-1600, New York; London, Pierpont Morgan Library; Oxford University Press.
p. 57