Inv. no. LNS 77 G
Blown, tooled, cut, ground and polished by lapidary means
Height 5.3 cm; diameter 10 cm
East Iranian world, 1st half 10th century AD
1st half 4th century AH
LNS 17 MS f 123v
Folio from al-Jazari’s Book of Knowledge of Ingenious Devices, water-powered flute mechanism
