Hi James,

Thank you for contacting Mearto with your appraisal inquiry.
Yes, this does appear to be a vintage Dolores Porras earthenware vase or vessel.
Based on the photos and information provided, and subject to examination, this is:

Dolores Porras (Mexican, 1937-2010)
Serpent vessel
earthenware
signed to the bottom
7 inches tall, approximately 8 inches diameter
CONDITION: This vessel appears to be in generally good condition with some flaking to the surface glaze.
PROVENANCE: Acquired at auction
$ 150-250*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, or questions/concerns, and thank you again for using Mearto.
~ Delia