The Philippine Postal Corporation will issue a set of stamps on October 24, 1999, United Nations Day, to publicize the International Year of Older Persons. (IYOP), World Teachers' Day (WTD) and World Heritage Site (WHS).

WORLD HERITAGE SITE - Paoay is located on a sandy plain, bounded by San Nicolas, Batac, Badoc and the sea. The blankets woven with hair by the women of Paoay were highly prized. Early documents refer to this town .as Bombay, the name which must have been the basis of the legend which hold that the very remote ancestors of the Paoayanos were settlers who had immigrated all the way from Bombay in India. Originally this town was a settlement located along the shores facing the China Sea. As early as 1593 this town was a Visita of Batac.