Columbia Extra Quality Catsup bottle ( Amethyst ). I would probably date this bottle around 1900 to 1915 from info I found. I have took notice that it has got a little darker from setting in my window. The bottle is 7 inches tall and if you look at pictures I have tried to enlarge the lip pictures for you. To me that is not a chip because it is smooth and not ridged it looks like a mold defect. Now I see some haze in the inside of bottle I don't know it a good cleaning will take it away.Now I soaked it overnight with Polydent and it looks like some was removed so maybe it needs soaked longer.