Source
Colling (1874)
James Kellaway Colling (1874), Examples of English Mediæval Foliage and Coloured Decoration: Taken from Buildings of the Twelfth to the Fifteenth Century with Descriptive Letterpress, London, Published by the author, 150, Hampstead Road, N.W., and by B.T. Batsford, 52, High Holborn, W.C.
Additional Reference
p. 61