Vintage USA Green Drip Pottery Planter #206 *EVC*

This is a vintage art pottery USA # 206 planter. As you can see by the pictures it's in excellent condition with no cracks, no scrapes, no crazing, no problems at all. There is a small hole in the bottom of this, it's a drainage hole. I don't know if this was done intentionally by the potter or if someone somehow drilled it into the pot. It's a very clean hole so it was put in the pot intentionally. I personally have never seen this before. The pot is 6 1/2 x 3 1/2 x 3 inches. It has the makers mark on the very bottom of the planter under the glaze, it's hard to see in person, so it didn't photograph easily.Thank you for looking.