charcoal


  P.1387 - §6 The improved economic condition of the Nazareth family was reflected in many ways about the home and especially in the increased number of smooth white boards which were used as writing slates, the writing being done with charcoal. Jesus was also permitted to resume his music lessons; he was very fond of playing the harp.
charcoal made of bamboo sticks.

a musical instrument made of charcoal sticks.