Royal Dutch Glassworks. P.M. Cochius became director 1912 and the company started commissioning designers to prepare suites of modern glass tableware and drinking sets, as well as vases and ornaments. These designer sets were acid etched with the designer's mark. Their designers included C.J. Lanooy, Hendrik P. Berlage, Andries D. Copier, and Floris Maydam.