The portrait of Juan Carlos I on the left side and the facial value and the legend on the right side.

Depicts the date and the coat of arms of Spain. Mint mark: crowned M.

The Spanish coat of arms is composed of six other arms: castle of Castile, lion of León, stripes of Aragon, chains of Navarre, pomegranate flower of Granada and fleur-de-lis of the House of Bourbon. The escutcheon represents the currently reigning dynasty Bourbon-Anjou.

On either side of the coat of arms are the Pillars of Hercules, the mythological name given to the Straits of Gibraltar. The banner round the pillars is the national motto of Spain "Plus Ultra" which means "further beyond" in Latin, referring to the Americas and the former Spanish territories. Over the pillars are two crowns, one an Imperial Crown and the other a Royal Crown. King Charles I of Spain was also the Holy Roman Emperor Charles V, hence the Imperial Crown.