Some additional information that may be helpful: 781-104 (781-04 does not exist) is, according to Juynboll, called a pisau poelang banaga (sword with a hilt with a naga). It has been collected in South-East Borneo by Mr. W.E.M.S. Aernout and has come into the collection of the museum in 1890, from his legacy.
Albert
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