This falls into the category of "back bar bottle" as many collectors would describe it. As you point out, the bottle has copper wheel cutting and was fitted for a stopper. This is no cheap disposable item; it was meant for regular use. It may have been used in a bar but also just used as a decanter in a house where the regular pedestrian bottle from the local store simply would not do. It could have been used for whiskey or other spirits, cognac, you name it.
The glass has manganese in it which has turned purple from exposure to ultraviolet light.