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Let me know how tall this is and what the diameter of the foot is and I'll update this for you ASAP.
Based on the photos and information provided, and subject to examination, this is:
A vintage brown-glazed redware pottery vase
Probably American or English, 20th Century
Of pinched cylindrical form with flaring lip and foot, with a mottled red/brown glaze overall, the unglazed foot impressed "820"
8 1/2 inches high and 4 1/2 inches diameter of foot
*represents a fair-market value for auction purposes; retail or asking price may vary.