I purchased this from a dealer, as it was described as "Indus Valley Pottery, c.800 BC". I do not know who made it, but I presume it is from the Indus Valley culture, circa 800 BC. It is in excellent condition with no chips or cracks, but has some mineral residue in various spots, as shown in the photos.

5" in diameter. 3" tall, including the rim of the opening.