The craft is joint: designers, engineers, and makers repeat on prototypes, refining joints, finishes

https://www.scribd.com/document/1039773992/Finials-That-End-Up-Well-100-Years-of-Copper-Integrity-146161

The craft is collective: architects, engineers, and makers repeat on prototypes, refining joints, surfaces, and tolerances up until classy ideas end up being buildable metal.