This is a beautiful WILLIAMSBURG SALT GLAZED POTTERY JUG / VASE. It measures 6-3/4" tall and 4" in diameter at it widest part with a 3" wide top opening.  It features the two handled design and is detailed with one of the familiar cobalt blue flower designs.   It has been made well and is typical of salt glazed ware in the 17th century foundations unearthed at Williamsburg. 
This piece is imprinted on the bottom: WILLIAMSBURG POTTERY FACTORY, INC.
EXCELLENT CONDITION WITH NO CHIPS OR CRACKS.&