Today, we have lost the painting techniques on horn from the 1900s.
In China, the exact composition of natural adhesives used to fix the tiny kingfisher feathers on silver is probably lost too.
The skills and tools for horn, shell and ivory are slowly disappearing as well as the artisans themselves. Very few young people are taking up the challenge of learning such a meticulous trade.
So, these ornaments are lessons in themselves, evidence of expertise that demand admiration.