JEAN DERVAL (1925-2010) A large square enamelled earthenware vase with a cylindrical flared neck, framed by two small circular handles, with a geometric flat decoration, in paraffin reserve, on each side, blue-grey, red enamels with brown and beige speckles. Signed with a "Jean Derval" stamp embossed on the reverse of the base. Height: 49.5 cm A large enamelled earthenware vase with manganese reserve decoration. Signed. H. 19 1/2 in.