| 31. | All stamps were printed by photogravure in sheets of 100 at the Reichsdruckerei, the Government Printing Bureau in Berlin.
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| 32. | In 1911, K�hn invented the " Gummigrav�re " technique, a combination of photogravure and Gum bichromate.
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| 33. | While she also produces photogravure prints, Wolf prefers the range of color and tone possible with the aquatint technique.
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| 34. | Talbot created the photoglyphic ( or " photoglyptic " ) engraving process, later perfected by others as the photogravure process.
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| 35. | In 1926 Cecil published his " Book of Beauty ", consisting of 37 photogravures accompanied by selected verses.
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| 36. | The Rainier Club has more than 35 photogravures and 27 original signed platinum and silver prints by Curtis from that journey.
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| 37. | A photogravure is made from an engraving plate on a printing press, making them much less costly than actual photographs.
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| 38. | Sassoon's photogravure, done by Walker & Boutall in 1897, rests in the National Portrait Gallery in London.
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| 39. | Since then, photogravure has been used to produce all Indian stamps; typography and lithography being reserved for service labels only.
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| 40. | He advanced the art of photogravure printing by demanding unprecedentedly high standards for the prints in " Camera Work ".
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