technique
技術 — Making
An established way of making something.
Aegina Sea Turtle StaterCirca 600–500 BC
Cartwheel twopence1797
1 Yang Silver (Year 501 of the Joseon Dynasty)1892
⚠ The technology of coin-making advanced not for the sake of beauty, but mostly to prevent fraud. Reeded edges and machine striking were both created for this purpose.