Coalport porcelain as vases, small boxes and table baskets. In 1820 Rose received the gold medal of the Society of Arts for his feldspar porcelain and an improved, lead-free glaze, with which the enamel colours fused in firing. Favourite patterns were the "worm sprig" and the "Tournai sprig" introduced by Billingsley at Pinxton, the Dresden-inspired "Berlin china edge", and the blue transfer willow pattern and blue dragon pattern. During the 1830s the factory initiated the practice of applying a light transfer printed blue outline, to guide the painters. This preserved some of the freedom of hand-painted decoration, while it enabled Rose to
Jingdezhen porcelain were appointed by the provincial administration up until 1726, when Beijing appointed Nian Xiyao. Wares of this interim period are often called "Transitional", and include the Tianqi porcelain mostly made for the Japanese market. The effect on the Jingdezhen potters was "liberating", as the range of subject matter in decoration greatly expanded. Printed books had become much more widely available, and were used, directly or indirectly, as sources for scenes on porcelain. Conveniently for the historian, many pieces began to be dated. Towards the end of the period the first "famille rose" porcelains appeared; the various colour "families" were to