Cognac glasses These glasses were produced in Germany (West Germany). They are crafted from premium crystal that was entirely mouth-blown and hand-polished, after which the motifs were incised using the demanding historical technique of copper-wheel engraving. Creating just one such glass and its intricate engraving required over 24 hours of precision work. Country of origin: Germany Material: Hand-cut crystal Period: Mid-20th century Capacity: 2 dl Height: 11.5 cm Rim diameter: 5.5 cm