Dust monitor from the scientists working on TGA (Technical Advisory Group) studies. These were located with the help of the anthropologists (who also wore them for a day) in various settings - such as the back of an open ute, in wiltja (sleeping quarters) and while digging for Maku (witchetty grubs, (Xyleutes leucomochia). They were designed to ascertain the volume of respirable dust ingested when engaged in normal daily activities. Previous No: Box 5, 5.010