I don't see a pontil scar from what little I can tell from looking through the bottle to the base. Davis was partnered with his son and eventually his son and anathor partner after the senior Davis died. This one looks a bit later than the 1840-60 bottle that Happy Camper referenced. Nice bottle though...the claim was that this painkiller was "good for both man and beast".
Perry Davis
No pontil on this bottle but still can dat 1860-1880
Although you will find a gem sitting on top of the ground sometimes just pay attention to the seam on the side of the bottle if it stops short on the neck and doesn't go all the way up to the top it isn't machine made