All such parts of the ornament are to be hand-made. If wire is used, it is to be hand-made with no tool other than a hand-made draw plate. These requirements apply to the boxes for stone used in the design.
source: The provisions of this part 301 contained in standards for Navajo, Pueblo, and Hopi silver and turquoise products, Mar. 9, 1937, unless otherwise noted.
cite as: 25 CFR 301.5