Wow, that's a beauty! Damage or no damage, that's a great find. Probably very rare as well. Don't often see advertising items made in that saltglaze style with the blue decoration. Any idea of its age?
Mug was made by White's Pottery of Utica NY between 1890-1907 . One is for sale online at Doc's Crocks for $125. Mine has the #20 on the base same as the one for sale. All info I posted is from the Doc Crocks website. A year or so later I dug up the bottle to complete the set.