🌺5 Antique Chinese Brass Nesting Bowls/Cups

Unique vintage set of stacking mini brass bowls. Made in China, each piece is etched with a design or lettering. There are 5 small concentric bowls that fit inside each other. The smallest bowl on top is domed around the perimeter. They are pretty heavy for their size, as they are pretty thick. Someone told me they are used for incense, although I’m not sure. Could be used for trinket bowls to hold jewelry or other small items. They measure between 2-3”. Unique!