Steuben Glasses are handmade works of fine crystal from the Steuben Glass Works of New York. Malory had a Steuben bar set in her ISIS office until Sterling broke the decanter and three glasses upon uncovering the mystery of his father's identity in "Dial M for Mother". Malory broke the last glass herself after a conversation later that day with Nikolai Jakov.
Malory often crushes glass tumblers with her bare hands or flings them at others when enraged. Whether or not these are Steubens is unclear.