This is a wonderful blue and white/gray stoneware crock with the blue stenciling for 'G. A. McCarthey & Bro. - Maysville, KY".  The crock measures 9 3/4" in height by 6 3/4" in diameter at the widest.  I believe this is either a 1 gallon or 1 1/2 gallon.  Overall condition is excellent - very minor roughness around the inside of the rim.  A very sought after piece of Kentucky advertising stoneware.