Musical instrument in Kerala

These are the parts of a musical instrument, played by women as they sung in upland Kerala: a leather resonator, a long piece of wood and a smooth stone (?) for rubbing on a string that connects the resonator and wood.

Full title: Musical instrument in Kerala [electronic resource] English.
Format: Photo           
Language: English
Published: [S.l.] : [s.n.], 1953.
Series: SOAS Digital Library.
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