Supplementary to 'Visit to Bentinck and Mornington Islands, Queensland by Norman B. Tindale. 1960' (AA 338/1/23)
'Biface oyster pick (1) Mornington I Lardi:l Tr.
Old William commencing working of block after breaking boulder in two with one blow from hammer stone
30 May 1960
journ. p. 269'