Four mid-century modern Gouda Pottery vases and bowl, circa 1950s, comprising modern design vases on jet black ground with crackle glaze white abstract patterns, an oval bowl with linear design, various patterns and makers including Regina 'Twilight Royal' and 'Pinguin', each impressed and painted maker's marks to the underside. Height 16 cm, (vase) and smaller length 25 cm, width 20 cm, (dish)