Issued in 1970, this Vatican City commemorative pair honors St. Dominic of Guzman (1170–1221), founder of the Dominican Order, marking the 800th anniversary of his birth. The stamps beautifully reproduce classical religious artworks: the 180 Lire value depicts a devotional image inspired by El Greco, while the 55 Lire stamp reproduces a serene portrayal attributed to Fra Angelico. Together, the pair highlights both the spiritual legacy of St. Dominic and the Vatican’s tradition of featuring renowned sacred art on its issues. Clean, well-centered examples of this commemorative set are popular among religious-theme, Vatican, and art-on-stamps collectors, especially when preserved as a matching pair.