Outer ring depicts a sample of the marajoara art pattern. In the inner ring, the Efígie da República, a symbol of the Republic.

Marajó is a coastal island located in the state of Pará, Brazil. The island is bordered by the Amazon river to the west and northwest, the Atlantic Ocean to the northeast and by the Pará River to the east. From approximately 400 BC to 1600 AD, Marajó was the site of an advanced Pre-Columbian society called the Marajoara culture, which may have numbered over 100,000 people at its peak.

The Efígie da República (Portuguese for Effigy of the Republic) is used as a national personification, both in Brazil and in Portugal, symbolizing the Republic. The effigy is a representation of a young woman wearing a crown of bay leaves in Roman style and a phrygian cap. It is present in allegoric paintings and sculptures displayed in government buildings throughout Brazil, and engraved on Brazilian real coins and banknotes. It was first used as a pro-Republican icon in the 19th century, inspired by France's Marianne. After the proclamation of the Republic in 1889, it became an important symbol of the newly formed Republic.

Numerical denomination and date surrounded by geometric patterns, 3/4 globe and Southern Cross.

Crux is a constellation located in the southern sky in a bright portion of the Milky Way, and is the smallest but one of the most distinctive of the 88 modern constellations. Its name is Latin for cross, and it is dominated by a cross-shaped or kite-like asterism that is commonly known as the Southern Cross.