Issued in 1981, this pair of Portuguese stamps celebrates “5 Séculos do Azulejo em Portugal” — five centuries of the nation’s famed ceramic tilework. The left stamp (8.50 escudos) displays a 15th-century Valencian “rajola encadenar” pattern in deep cobalt blue, reflecting early Moorish geometric influence. The right stamp (8.50 escudos) depicts a 1510 Sevillian-made Escudo d’Armas tile featuring Portugal’s royal coat of arms, symbolizing the transition to Renaissance motifs. These beautifully printed issues capture Portugal’s rich decorative heritage through the art of azulejos.