Lignum nephriticum cup made of narra Wooden (the namesake of the province) manufactured opalescent colours when drinking water is poured into it. These picket cups had been a major pre-colonial and colonial sector of Naga. Naga is the indigenous pre-colonial name of the town. It is named following the https://casper7744333.p2blogs.com/27664188/how-23naga-can-save-you-time-stress-and-money