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Filigranology
Filigranology is the study of watermarks A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations i .... It is usually pursued in order to discover information about the date and origin for a paper-based piece of writing or a piece of art. There are several catalogues of watermarks – most notably C. M. Briquet's, ''Les Filigranes'' (1907) – including illustrations of many watermarks from dated documents to aid those wishing to undertake this kind of research. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watermarks
A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper. Watermarks have been used on postage stamps, currency, and other government documents to discourage counterfeiting. There are two main ways of producing watermarks in paper; the ''dandy roll process'', and the more complex ''cylinder mould process''. Watermarks vary greatly in their visibility; while some are obvious on casual inspection, others require some study to pick out. Various aids have been developed, such as ''watermark fluid'' that wets the paper without damaging it. A watermark is very useful in the examination of paper because it can be used for dating documents and artworks, identifying sizes, mill trademarks and locations, and determining the quality of a sheet of paper. The word is also used for digital prac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles-Moïse Briquet
Charles Moïse Briquet (30 August 1839, in Geneva – 24 January 1918, in Geneva) was a noted Swiss filigranologist. He was the first, or among the first, to suggest the use of watermarks for dating paper. He produced in 1907 the mammoth four-volume work ''Les Filigranes''. His papers, including his collection of traced watermarks, are kept at the Bibliothèque de Genève The Bibliothèque de Genève (BGE, English: Geneva Library, Library of Geneva), founded in 1559, was known as ''Bibliothèque publique et universitaire'' (BPU, English: Public and University Library) from 1907 to 2006. It occupies different buil .... Works by Briquet that have been published in English * "The Briquet Album : a miscellany on watermarks, supplementing Dr. Briquet's "Les filigranes", (1952). * "Briquet's Opuscula; the complete works of Dr. C.M. Briquet without Les filigranes", (1955). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watermarking
A watermark is a recognizable image or pattern in paper used to determine authenticity. Watermark or watermarking may also refer to: Technology * Digital watermarking, a technique to embed data in digital audio, images or video ** Audio watermark, techniques for embedding hidden information into audio signals * Watermark (data file), a method for ensuring data integrity which combines aspects of data hashing and digital watermarking * Watermark (data synchronization), directory synchronization related programming terminology * Watermarking attack, an attack on disk encryption methods Films * ''Watermark'' (2013 film), a documentary film directed by Jennifer Baichwal and Edward Burtynsky * ''Watermark'' (2003 film), an Australian film directed by Georgina Willis and produced by Kerry Rock. * ''Watermarks'' (film), a 2004 documentary film about the Viennese Hakoah swim team Music * ''Watermark'' (Art Garfunkel album), a 1977 album by Art Garfunkel * ''Watermark'' (Enya alb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papermaking
Papermaking is the manufacture of paper and cardboard, which are used widely for printing, writing, and packaging, among many other purposes. Today almost all paper is Pulp and paper industry, made using industrial machinery, while handmade paper survives as a specialized craft and a medium for paper art, artistic expression. In papermaking, a dilute suspension consisting mostly of separate cellulose fibres in water is drained through a sieve-like screen, so that a mat of randomly interwoven fibres is laid down. Water is further removed from this sheet by pressing, sometimes aided by suction or vacuum, or heating. Once dry, a generally flat, uniform and strong sheet of paper is achieved. Before the invention and current widespread adoption of automated machinery, all paper was made by hand, formed or laid one sheet at a time by specialized laborers. Even today those who make paper by hand use tools and technologies quite similar to those existing hundreds of years ago, as origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
