For sale are five vintage Stainless Steel Whiskey Flasks . There are two that were produced for Wiser’s Whiskey, one that was produced for Crown Royal Whiskey and the other two are unmarked. There are two 6 oz flasks a 175 ml flask, a 4 oz flask and a 2 1/2 oz flask. Great for taking to concerts, sporting events etc. for a little nip. See the large detailed photos for condition of the flasks.