During the red wine glut a few years ago there was quite a few clean skins going cheap, the wineries did this to get rid of excess stock and not cheapen their more expencive brands.
I came across some WA clean skins that simply had Geograthe region with is the south west which includes Margret river and surounding areas that produes excelent wines. These turned out to be excelent and at $6 a bottle I brought cases of them, I hazard to guess but I'd say that they where $20 wine at least.