This sub-series contains material related to doll sculpting and factory production. Materials are comprised of correspondence, photographs, 35 mm slides, patent copies, handwritten notes, printed references, and audio/visual materials. The content includes information related to doll sculptors Martha Armstrong-Hand, Joyce Christopher, and Aldo Favilli.

Of interest, box 4 folder 7 contains information on United States patents: 12431, Barbie figurine; 3234689, doll construction for natural movements and positions; 689055, Barbie trademark registration; 3411235, Eyelash-simulating rooted fibre.

Also of interest in box 4 folders 8-9 are photographs showing the production process, including the Benefit Ball Barbie, at Chang An plant. According to slide description by TW Wong, MTHK had two manufacturing plants in China, the Chang An Plant and the Guan Yao Plant. Each plant employed around 2,500 workers and produced 400,000 Barbie dolls per week, plus Barbie fashions and some other products. Chang An Plant is located about one and a half hours away from the Hong Kong border.