The front represents the Pinisi, is a traditional Indonesian sailing ship, originating from the Bugis and Makassar peoples of Sulawesi, used since the 14th century for maritime trade. Built mainly in wood with techniques passed down from generation to generation, it is recognizable by its two masts and its large pible sail. Today, some Pinisi are used for tourist cruises, celebrating their cultural heritage. In 2017, UNESCO included the crafts and building traditions of Pinisi on the list of Intangible Cultural Heritage of Humanity, highlighting its historical and cultural importance.
The reverse shows Krakatau, or Krakatoa, is a volcanic island located in the Sunda Strait between Java and Sumatra, famous for its catastrophic eruption in August 1883, one of the deadliest in history. This eruption destroyed more than two thirds of the island, causing the death of more than 36,000 people and generating a noise heard as far away as Australia. It also caused global climate anomalies, such as temperature drops and spectacular sunsets. In 1927, a new island, Anak Krakatau, appeared in the caldera created by the 1883 eruption and remains active, with frequent eruptions. Krakatau is closely monitored due to its continued activity and is a site of scientific interest for the study of ecological succession and volcanic phenomena.
