Lignum nephriticum cup manufactured from narra wood (the namesake from the province) made opalescent shades when water is poured into it. These wooden cups were a major pre-colonial and colonial market of Naga. Naga is definitely the indigenous pre-colonial name of the city. It is named following the narra https://casper7733333.rimmablog.com/27805290/a-simple-key-for-23naga-unveiled