Silverwork and jewelry : a text-book for students and workers in metal (1912)
Wilson, H, Bisei, Unno · New York : D. Appleton · leaf 142
Fig. 73. of an L. The last piece helps to makethe spring of the pin. The flat end ofthe pin catchesagainst this ; thepin being bentdown under thecatch is held inplace by the elas-ticity of the metal /r \ r>* *IG- 73A« (fig. 74). Pins /5 made of 9-carat gold are very much betterthan silver pins,…
Silverwork · Jewelry
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