A LEERDAM UNICA VASE, designed by Chris Lanooy, swollen cylindrical shape narrowing to a short cylindrical neck, on applied circular foot, red-brown glass with lustre-glaze finish, engraved Leerdam Unica C.J. Lanooy and yearletter for 1928, 24.2 cm high; and ANOTHER LEERDAM UNICA VASE, designed by Chris Lanooy, globular shape with short cylindrical neck and on applied circular foot, clear glass with acid-treated surface and lustre-glaze finish, engraved Leerdam Unica C.J. Lanooy and yearletter for 1929