Looks like it got a bit melted in a fire. Quite common as they used to set garbage dumps on fire in an attempt to control disease and pests. The bottom has a very crude Owens scar, so this would be a fairly early ABM bottle.
Could be warped from being in or near fire, I've seen badly melted bottles in dumps before from fire. Is that bottle 12 oz. size or bigger Quart size. hard to tell from pic. 12 oz. or pint size should be about 9 inches tall while the Quart would be more like 11 -12 inches tall. Let me know. LEON.