Dong Son Bronze Drum, Yunnan province, China or Vietnam, 18th century or earlier

Reference: Heger, Franz. Alte Metalltrommeln aus Südost-Asien. Kommissions-Verlag von K. W. Hiersemann, Leipzig, 1902
Provenance: German collection, acquired before 1927 in Tungkun, Canton province or between 1927 and 1939 in Bangkok