Vintage Chinese fine burlwood carved amulet depicting group of musicians. pdwo100

A splendid finely detailed carved burl wood amulet pendant. Deep carved and pierced. The front side depicts 4 musicians. Two drummers, one with flute, another with a stringed instrument. On the back is a deep carved longevity symbol. Measures 3 x 1-3/4 x 3/4 inches. There appears to be a signature on the back. And a few tiny worm holes visible under magnification. An old piece from a dealer's estate. Attached with silk cord and Chinese knot. Cord is 25 inches long.