Paper
Immediately after paper was invented in the early 2nd century AD in China, and was popularized throughout the East and the West, it became not only a means for writing but also of artistic expression. Unlike book and archival material (letters, manuscripts, maps, photographs, etc.), artworks executed on paper support can be unique. Depending on the combination of paper type and medium used to apply the image the resulting artistic result is completely unique. Thus, conservators must choose which conservation method is best according to each individual engraving, etching, drawing and watercolor work they encounter, so that they work will be properly protected and display best over time. The following are examples of the numerous paintings and prints on paper substrates found in the collection of the National Art Gallery.