The National Archives of Thailand has collected, maintained, and conserved various textual and audio-visual archives. The glass plate negatives are originally printed Collections from Reign of King Rama V to King Rama VII. It is the first photographic technique by using glass plate negatives and was popular during 1855-1935. These collections are including the photographs of the Thai king and the royal family, It also presents historical evidence featuring social, cultural, political, and foreign relations activities of Siam to the world. Moreover, it also represents the culture of ASEAN countries.