Lignum nephriticum cup product of narra wood (the namesake with the province) produced opalescent colours when h2o is poured into it. These wooden cups ended up An important pre-colonial and colonial industry of Naga. Naga would be the indigenous pre-colonial name of the town. It is actually named after https://damienyjwhs.eedblog.com/27996680/everything-about-23naga