Handmade studio pottery mug signed "J Costantini" on base – likely from Nichibei Potters (Sebastopol, CA) collective known for Japanese-inspired folk ceramics.
​Details:
White stoneware/glaze w hand-painted black squiggles + turquoise abstract spots
Comfortable handle, footed base
Signature confirms artist/studio origin
Size: Standard mug capacity (~12-14oz)

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