With the Jadeite Cabbage, for example, the NPM only provides photos, and would under no circumstances lend out the original. The supplier working on contract to the museum has to use the photos to fashion a three-dimensional image and sculpt a model. This is then supplied to a craftsman, who produces imitations based on the model.
以翠玉白菜為例，故宮只提供照片，絕不可能出借真品；與故宮簽約的供貨商必須據此模擬出 3 度空間立體影像，並雕出翠玉白菜的實體樣本，再外包給師傅仿做。