Punch cup from the middle 19th century

Height 10 cm. Rare punch cup with optical twist. The cup is blown in shape and then twisted so that the optics appear on the outside and with the molded foot. Underneath it is with a sharp crack and expected wear and tear. The cup appears in Holmegaard's catalog from 1853, as either "No. 15" or "No. 16", and in the 1867 catalog called model "Water glass with foot, smooth, pressed and striped." The glass is in exceptionally fine condition. Item number: 5684