Ruler Number Ceramic Pitcher or Vase

Pitcher with spout and ruler and graduated number design in black on one side. Can be used as a pitcher or as a vase. See last two photos for minor flaws: first shows a slight irregularity in the pottery around the top and the last shows a small greying mark near the spout. Brand is unknown. Measurements Height: 5 3/4" Diameter: 3 1/2"