Oorlog op Java, groot draagteken uitgereikt aan de deelnemers, ter ere van Willem I Frederik, koning der Nederlanden 1830

"Oorlog op Java, groot draagteken uitgereikt aan de deelnemers, ter ere van Willem I Frederik, koning der Nederlanden" is a collection of medals awarded to participants in the Java War, which took place in Indonesia from 1825 to 1830. The medals, created by Dutch artist David van der Kellen, were commissioned in honor of King Willem I Frederik of the Netherlands. The medals are made of brass, each measuring approximately 4.3 cm in diameter and weighing 18 grams. They are currently housed in the Rijksmuseum in Amsterdam. The medals commemorate the conflict between the Dutch East India Company and the Javanese people, a period of significant historical importance in the colonial history of Indonesia.