Lignum nephriticum cup made of narra wood (the namesake in the province) manufactured opalescent colours when drinking water is poured into it. These wooden cups ended up a major pre-colonial and colonial marketplace of Naga. Naga is the indigenous pre-colonial name of the town. It is actually named after https://topi88-pragmatic-slot-onl88888.link4blogs.com/50298830/not-known-factual-statements-about-23naga