Vintage Cobalt Blue Hazel Atlas Bottle with by beautifuldetailswed:
"This bottle is on the top of my list as one of my favorites. It's a beautiful cobalt blue and has a very pretty ribbing down the sides that wraps around the edge of the backside of the bottle as well. It was either a water bottle or a Milk of Magnesia bottle. There is some residue on the inside that you can see slightly from the back. I love the bottles with some residue still in them. They always have a lovely pearly affect to them. The bottle also dates anywhere from 1930-50s."