Lignum nephriticum cup made of narra wood (the namesake with the province) created opalescent colors when drinking water is poured into it. These picket cups were A significant pre-colonial and colonial business of Naga. Naga would be the indigenous pre-colonial name of the town. It is actually named after https://andersonrcozl.bloggosite.com/34607269/not-known-factual-statements-about-23naga