Depicts a reproduction of the Trinacria, the symbol of Sicily (a Greek word that means ‘three pointed’ it recalls the shape of the island, which resembles a triangle), represented by the head of the Gorgon, whose hair is made of snakes, on three legs bent on their knee. Around, the inscription “REPUBBLICA ITALIANA”.

The symbol is known as Trinacria, a Greek word that means ‘three pointed;’ it recalls the shape of the island, which resembles a triangle. Trinacria was the earliest known name of the island of Sicily.

A Gorgon is a creature in Greek mythology. Gorgons occur in the earliest examples of Greek literature. While descriptions of Gorgons vary, the term most commonly refers to three sisters who are described as having hair made of living, venomous snakes and horrifying visages that turned those who beheld them to stone. Traditionally, two of the Gorgons, Stheno and Euryale, were immortal, but their sister Medusa was not and was slain by the demigod and hero Perseus.

A triskelion or triskeles is an ancient motif consisting of a triple spiral exhibiting rotational symmetry. The actual triskeles symbol of three human legs is found especially in Greek antiquity, beginning in archaic pottery and continued in coinage of the classical period. In the Hellenistic period, the symbol becomes associated with the island of Sicily, appearing on coins minted under Dionysius I of Syracuse beginning in c. 382 BCE. It later appears in heraldry, and, other than in the flag of Sicily, came to be used in the flag of the Isle of Man (known as "the three legs").

Depicts a detail from the mosaic in the Ruggero Room in the Palazzo dei Normanni, representing two peacocks surrounded by luxuriant vegetation. At the base of the work the name of the author “V. DE SETA”, the mintmark “R”, the face value “20 EURO” and the year of issue “2012”; below the arch-shaped inscription “FLORA NELL’ARTE”.

The Palazzo dei Normanni (Norman Palace) is also called Royal Palace of Palermo. It was the seat of the Kings of Sicily with the Hauteville dynasty and served afterwards as the main seat of power for the subsequent rulers of Sicily. Since 1946 it has been the seat of the Sicilian Regional Assembly. The building is the oldest royal residence in Europe; and was the private residence of the rulers of the Kingdom of Sicily and the imperial seat of Frederick II and Conrad IV.

The Ruggero Room, a rectangular space covered with a cross vault, contains exquisite mosaic decoration above a high marble plinth. It covers the walls, lunettes, the undersides of the arches and the vault. Leopards, lions, harts, peacocks, centaurs and bowmen confront one another symmetrically amongst fruit trees and palms in the large lunettes. Spiral branches with leaves and flowers entwine the decorative elements of the vault, interrupted only by geometric bands (at the crossing points) and the medallions with lions and griffins. The Swabian eagle, within an octagon at the centre of the vault, dominates the composition, while the double-headed eagle appears on the keystones of the minor arches.

Thought to be the work of mosaicists trained in Byzantium, the iconographic themes of the mosaic cycle show clear eastern influence, more Persian and Seljuq than Arabic, as a result of the osmosis between the Islamic and Byzantine worlds.