Royal Photographic Glass Plate Negatives and Original Prints Collection
The Royal Photographic Glass Plate Negatives and Original Prints Collection, or the Vajirañāṇa Royal Library Collection is a large collection of photographic originals from Thailand during the second half of the 19th century to the early 20th century, held since 1977 by the National Archives of Thailand. They were originally acquired by Prince Damrong Rajanubhab, who gathered originals from the personal collections of kings Chulalongkorn and Vajiravudh, his own collection, as well as several photography studios, at the Vajirañāṇa Royal Library, which he headed. The collection comprises 35,427 glass plates, ranging in size from, as well as almost 50,000 prints, and forms a detailed photographic record of Thailand during the country's period of modernization. The collection was inscribed by UNESCO on the Memory of the World International Register in 2017.