Vintage Japanese Shell Art Peacock & Floral Motif

Vintage Shell Art, I believe to be Japanese/Chinese? Large Peacock in the middle of the art and 1 smaller one closer to the top. Really cool how they have done this. Truthfully if anyone could share any other info on this, I would appreciate it........What type of shells were used. Its origin or even dating the piece. It does not appear to be something that was thrown together quickly and sold to the masses like some of the items today......Also what they call asian art like this if there is a name......Thank you