Vintage Modernist Style Signed Art Pottery Vase

A vintage art pottery partially glazed vase with a ribbed design on the body. The glaze colors of green overlap. It bears an incised signature on the bottom that reads (possibly) C. Ziman. This piece does not appear to be damaged. It has age appropriate wear. The vase measures approximately 6.25 inches high by approximately 4 inches in diameter. pottery, artistan decor, tableware, tabletop decor, arts and crafts, handcrafted, 20