For a similar example cf., exhibition catalogue, 3000 Jahre Glaskunst, Kunstmuseum Luzern, 1981, p. 61, no. 144, pl. F9. For another in opaque white see no. 2, p. 88 in 'Recent Important Acquisitions Made by Public and Private Collections in the United States and Abroad', Journal of Glass Studies, 1980, vol. 22.