More than 30,000 shapes are stored at Porzellan Manufaktur Nymphenburg's model and mould archive. This is where the historic models for figures and services that permit the artistic originality and faithfulness to the model are stored. It is only possible to continue producing porcelain pieces if the original patterns remain available. These models are used to create the plaster moulds to cast and dry porcelain. The moulds need to be replaced after 15 casts. Many of the original models are no longer part of the standard repertoire but can, on request, be easily reproduced.