In 1925, a commemorative stamp marked the 400th anniversary of the death of Vasco da Gama and in December 1931 a set of six promoted the Exposition of St. Francis Xavier held at Goa. Sets of stamps in 1946 and 1948 commemorated notable historical figures related to the colony. Portuguese India's first stamp exhibition, in 1952, was commemorated with a pair of stamps; one reproducing the design of the first issue, the other depicting St. Francis Xavier. A definitive series in 1956 commemorated the 450th anniversary of Portuguese settlements in India, and included portraits and maps of old forts, while a 1959 series depicted various coins.