Lignum nephriticum cup manufactured from narra wood (the namesake on the province) produced opalescent colours when h2o is poured into it. These wooden cups have been A serious pre-colonial and colonial sector of Naga. Naga would be the indigenous pre-colonial name of the city. It can be named following https://griffinmamys.blog2news.com/28477661/manual-article-review-is-required-for-this-article