Travel time 18 days
Sender Mia Salim from Indonesia
Travel time 64 days
Sender Fida from Indonesia
Travel time 67 days
Sender Mia Salim from Indonesia, with special postcrossing stamps
The Flag of Indonesia is a simple bicolour with two equal horizontal bands, red (top) and white (bottom) with an overall ratio of 2:3. It was introduced and hoisted in public at the Indonesian Declaration of Independence on 17 August 1945 in Pegangsaan Timur street in Jakarta, and again when the Dutch formally transferred sovereignty on 17 August 1950. The design of the flag has remained unchanged since.
The flag of Indonesia is graphically identical to the Flag of Monaco, with a slight difference only in the ratio of its dimensions.
The Naval Jack of Indonesia is reserved for sole use by the Indonesian Navy. It flies from the mast of every active Indonesian war ship. The design of the jack is described as nine alternating stripes of red and white. It is nicknamed Ular-ular Perang (War Pennant or literally "War Snakes"), probably due to the stripes' design. The naval jack dates to the age of Majapahit Empire. This empire, renowned for its great maritime strength, flew similar jacks on its vessels.