Gilbert Portanier Rosenthal Alta Mira vase abstract ceramic decor 20th century M2135 Gilbert Portanier Rosenthal Alta Mira vase abstract ceramic decor. Gilbert Portanier (born in 1926). White earthenware vase with abstract polychrome decoration “Alta Mira”. Rosenthal Editions. Signed in the decor. Note signs of wear inside and black marks on the bottom. Our photos allow you to appreciate the quality of the object. For the condition, please detail the photos. Feel free to zoom in. The photos are an integral part of the description. Dimensions: Height: 20 cm Collar width: 11 cm Inner collar diameter: 5.5 cm Base diameter: 8 cm I remain at your disposal for any questions.