CUP Blue glass H. 6 .3 x Diam. 7.7 cm ( 2 ¹/2 x Diam. 3 inches) Eastern Mediterranean, 1st-3rd century Provenance European collection, acquired on the English art market in the 1990s A hemispherical bowl in blown glass with a blue-green (aqua) hue, a natural colour characteristic of undiscoloured Roman glass. The piece has a rounded profile resting on a slightly concave base. Two fine horizontal incised grooves decorate the lower part of the body, forming a sober and elegant decoration. The glass has developed a pearlescent iridescence and concretions testifying to its burial. Overall good condition. Iridescence and calcareous concretions spread over the surface. A few visible micro-cracks, stabilised by the patina. A Roman Eastern Mediterranean Hemispherical Blown Glass Bowl. 1st-3rd century A.D. Hemispherical bowl in blown glass of blue-green tint (aqua), the natural colour characteristic of undecolored Roman glass. The piece features a rounded profile resting on a slightly concave base. Two fine incised horizontal grooves adorn the lower part of the body, forming a sober and elegant decoration. The glass has developed a pearly iridescence and concretions indicating burial. Good overall condition. Iridescence and calcareous concretions distributed over the surface. Some visible micro-cracks, stabilized by patina. Form related to Isings types 12 or 16, simple bowls with rounded profile widely distributed.