This is a lovely grouping of pottery shards produced by the Mimbres people of the southwestern USA. All three of these pieces are attributable to the Classic Black-on-White type, Style III (including the pieces with red/brown pigment...it's not the most accurate term!) All three pieces were formerly parts of larger pottery objects, most likely bowls decorated with geometric patterns. See J.J. Brody's "Mimbres Painted Pottery" for further reading.
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