Volume 1: The Production and Varieties (420 pages) Volume 2: The Usage (428 pages) The book explains in the first volume about the background for Denmark’s first postal card in 1871 and shows all the essays and proofs of the issue. The book then describes the different types and varieties of all bi-coloured postal stationery: postal cards, reply cards, letter cards and wrappers. The second volume focuses on the usage of the bi-colored postal stationery in all postal historical aspects, including rates, supplementary frankings, special types of mail (samples of no value, border mail, ship mail, captain’s letters, naval mail etc.), postal markings (cancellations, date postal markings, railway postal markings, ship postal markings, private postal markings, return handstamps, office handstamps, etc.), labels, manuscript markings and much more.

Bridging the fields of conservation, art history, and museum curating, this volume contains the principal papers from an international symposium titled "Historical Painting Techniques, Materials, and Studio Practice" at the University of Leiden in Amsterdam, Netherlands, from June 26 to 29, 1995. The symposium—designed for art historians, conservators, conservation scientists, and museum curators worldwide—was organized by the Department of Art History at the University of Leiden and the Art History Department of the Central Research Laboratory for Objects of Art and Science in Amsterdam. Twenty-five contributors representing museums and conservation institutions throughout the world provide recent research on historical painting techniques, including wall painting and polychrome sculpture. Topics cover the latest art historical research and scientific analyses of original techniques and materials, as well as historical sources, such as medieval treatises and descriptions of painting techniques in historical literature. Chapters include the painting methods of Rembrandt and Vermeer, Dutch 17th-century landscape painting, wall paintings in English churches, Chinese paintings on paper and canvas, and Tibetan thangkas. Color plates and black-and-white photographs illustrate works from the Middle Ages to the 20th century.