It is called called tian-tsui, because it means dotting with kingfishers and involves adhering the feathers onto metal. After Chinese Revolution in the 1940s these technique was no longer in use.
The item "Antique Qing Dynasty Kingfisher feather Pendant Chinese Coral Tian-tsui" is in sale since Sunday, March 21, 2021. This item is in the category "Antiques\Asian Antiques\China\Other Chinese Antiques". The seller is "designuworld" and is located in Lilburn, Georgia. This item can be shipped worldwide.