Produced by Robert W. Allison
Assoc. Prof of Religion, Bates College, Lewiston, Maine and
Research Fellow Ektaktikos of the Patriarchal Institute for Patristic Studies, Thessaloniki
© 1996 Robert W. Allison. All rights reserved.

Thomas Gravell's Use of the Dylux® Method

In these works, the contact prints were reproduced for publication photographically, using a red filter to heighten the contrast between the light and dark tones (yellow and blue) in the Dylux® contact print. In this electronic archive, the same effect was accomplished by scanning the contact prints in color and saving the red channel. Gravell collaborated with photographer Herbert L. Crossan III, photographer at the Winterthur Museum, Winterthur, Delaware, to produce these volumes.

• A Catalog of American Watermarks, 1690-1835. New York, Garland, 1979

• A Catalogue of Foreign Watermarks Found on Paper Used in America, 1700-1835. New York Garland, 1983.

html://www.bates.edu/Faculty/wmarchive/Gravell.html