SAINT-LOUIS BRISTOL JOSEPH liqueur glass with overlay, cobalt blue lined crystal

This exquisite liqueur glass is made of Saint-Louis crystal. It is the Bristol model, decorated with a regular, flat-ribbed cut. This model appears in the 1930 Saint-Louis catalog, notably under the name Joseph and Ampère, decorated with cut number 10562, and later known as Bristol. It is the Rhine wine glass shape, but sized for liqueurs. The overlay technique is a Saint-Louis specialty: a first layer of clear crystal is covered with a second colored layer, which is then cut to reveal the underlying crystal. This glass is a beautiful navy blue, also known as cobalt blue. Unsigned, it measures 12.5 cm in height X 4.5 cm in diameter. I note some minor scratches from use and small bubbles in the crystal.