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
Coalport porcelain a maroon glaze and brought the Nantgarw technical recipes to Rose at Coalport. Coalport and Coalbrookdale specialised in dinner services. The familiar "Indian tree" pattern, which is based in fact on Chinese rather than Indian prototypes, was originated at Coalport; variants have been produced by virtually all the British manufacturers of table wares and continue to be available today. Models that originated at Meissen and Sèvres were copied at Coalbrookdale in the mid-19th century, sometimes with misleading marks, "a practice which ought to have been avoided", William Chaffers observed. Sprigged floral encrusted decoration was also typical of Coalport wares, such