I would like to ask about nicole richie Chanel vintage bag?

I would like to get a vintage chanel bag like this http://www.ebay.com.au/itm/CHANEL-Auth-Black-Vintage-Gst-Tote-Bag-Nicole-Richie-/120736740029?pt=AU_Women_Accessories&hash=item1c1c7872bd#ht_759wt_922 this is beautiful but I want a lambskin one which is as same as Nicole richie one, thanks