WW2 AIF Rifle Range Flag?

[VolksJager]

This is one of the latest purchases. Anyone seen anything like this before? I bought it as a WW2 Australian Range flag. Made of heavy cloth its yellow on one side and black on the other. Shows outdoor use and has all ropes and toggles. Faintly marked in one corner Hendleys PTY LTD and D^D. "Shirley" is also written on the yellow side above the stamps. What do you guys think?