Watermarks -- Data processing : Intelligent watermarking techniques / editors, Jeng-Shyang Pan, Hsiang-Cheh Huang, Lakhmi C. Jain
2004
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Watermarks -- Europe -- Identification : Revealing watermarks : how to enhance the security of hand-made paper items and reveal hidden data / Ian Christie-Miller
Watermarks -- History. : Papermaking : the history and technique of an ancient craft / by Dard Hunter
1978
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Watermarks in art : Master drawings in the Royal Collection : from Leonardo da Vinci to the present day / Jane Roberts
1986
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Watermarks -- Indexes. : A catalogue of the drawings by Camille Pissarro in the Ashmolean Museum, Oxford / [compiled by] Richard Brettell and Christopher Lloyd