Hello. My significant other is working out of town and dug up a bottle at his job site a couple of days ago. It is a blob top soda bottle. It says Chrystal Palace Soda Water, W. Eagle, NY, Union Glass Works and P hiladelphia abbreviated. We thought it was a dark green color. It was covered in mud. He has not tried to scrub it or add any chemicals to clean. However, he let it soak a few hours in room temperature water. Some of the silt lifted off and we can see it is Cobalt Blue under the layers of dirt. It has a concave bottom with a pontil mark. There are no cracks in it. And one little chip on the bottom edge. It looks like it may have had a cork at one time. Any info on history? Such a beautiful color.