Jam glass: vintage. It is made of thick glass, with flat ribs. At the top, a groove to close it with an elastic band. At the bottom, the bottom is concave, with a star in relief and the inscriptions: F. P. Déposé. Good condition, with a chip on the inner edge. Diameter: 9 cm, Height: 12.5 cm. Beautiful authentic jam glass. In the last photos, another smaller glass is available. To collect or to offer. Information: