End of pipe-production, Regina, developed after 1919 from traditional decorative ceramics (stylized flowers, gloss/mat glaze), tiles, to Art Deco/Amsterdam School designs of vases by Jaap Gidding and figures/sculptures by A. Remiëns and E.G.C. Schubad. Regina won lawsuit against Gelria because of imitation of her decor Argos, since this verdict Art Pottery falls under the law of Copyright.
Between 1952-'66 Floris Meydam-dinnerware, like the very popular Black Princess-dinner set produced in different colours, selling price raised by 40 per cent because of high demand. Produced in 1958 Regina Resista, fire-proof pottery. Nowaday's Delft ware and Gouda Plateel/Pottery decorative ceramics.