This is a very nice blue and gray stoneware crock with the blue stenciling for 'G. A. & J.E. McCarthey - Maysville, KY".  The crock measures 10" 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 - interesting glazing in the firing.  A very sought after piece of Kentucky advertising stoneware.