Drawing, sketch of linkages, ink / pencil / watercolour / paper, Lawrence Hargrave, Sydney, New South Wales, Australia, date unknown
A drawing in black and red ink, watercolour and pencil on brown paper. With pencil annotations by Hargrave. The drawing is untitled and undated by Hargrave.
Pencil annotation by W. Hudson Shaw at lower right reads 'Sketch of/ linkages/ purpose/ unknown'.