In the manner of or using galvanoplastic processes; through electrodeposition and electroforming techniques.
Galvanoplastical + -ly (adverb-forming suffix). Transforms the adjective into an adverb describing how something is accomplished through electroplastic methods.
When a Victorian jeweler said something was 'created galvanoplastically,' he was essentially saying 'this fancy object was electrically made'—and that was cutting-edge technology in 1850.
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