Lignum nephriticum cup made from narra Wooden (the namesake in the province) produced opalescent colors when water is poured into it. These picket cups were being A serious pre-colonial and colonial market of Naga. Naga could be the native pre-colonial name of town. It's named once the narra tree https://topi88slotonlineterpercay88888.bloguetechno.com/the-5-second-trick-for-23naga-64637040