Meissen porcelain further precaution, very few workers knew the special secret ("arcanum") of how to make porcelain, and then perhaps only part of the process. Thus, for a few years, Meissen retained its monopoly on the production of hard-paste porcelain in Europe. By 1717, however, a competing production was set up at Vienna, as Samuel Stöltzel sold the secret recipe, which involved the use of kaolin, also known as china clay. By 1760 about thirty porcelain manufacturers were operating in Europe, most of them, however, producing frit based soft-paste porcelain. In order to identify the original Meissen products, Meissen developed markings that
French porcelain collection. Ferdinand's first purchase of Sèvres is a poignant narrative at Waddesdon manor, in which at 21 years old, he treated himself to the famous turquoise Sèvres 'boat shaped' potpourri vase "which he bought in instalments and is still at Waddesdon". French porcelain French porcelain has a history spanning a period from the 17th century to the present. The French were heavily involved in the early European efforts to discover the secrets of making the hard-paste porcelain known from Chinese and Japanese export porcelain. They succeeded in developing soft-paste porcelain, but Meissen porcelain was the first to make true hard-paste,