Sandtique Rare Prints
Cyclopedia of Ireland - 1900 - A.M. SULLIVAN - Lithograph
OF PROMINENT IRISH MENThis 111 year old LITHOGRAPH print is from the book "ATLAS & CYCLOPEDIA OF IRELAND" by P. W. Joyce and was published by the Murphy & Mccarthy New York in 1900. The principle of lithography
Lithography uses simple chemical processes to create an image. For instance, the positive part of an image is a hydrophobic, or "water hating" substance, while the negative image would be hydrophilic or "water loving". Thus, when the plate is introduced to a compatible printing ink and water mixture, the ink will adhere to the positive image and the water will clean the negative image. This allows a flat print plate to be used, enabling much longer and more detailed print runs than the older physical methods of printing (e.g., intaglio printing, Letterpress printing).
Lithography was invented by Alois Senefelder in Bohemia in 1796. In the early days of lithography, a smooth piece of limestone was used (hence the name "lithography"—"lithos" (λιθος) is the ancient Greek word for stone). After the oil-based image was put on the surface, a solution of gum arabic in water was applied, the gum sticking only to the non-oily surface. During printing, water adhered to the gum arabic surfaces and avoided the oily parts, while the oily ink used for printing did the opposite.
This fine litho print has an image that is about 9 3/4 " x 7 1/2 " and it takes up the full page. It is in very good condtion with some minor age toning. It is suitable for framing and would be an excellent gift.
The portrait that is being offered is of "A.M. SULLIVAN"
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