Swing light, by House Doctor, in brass plated iron.

Antenna technology demonstrator, manufactured from injection moulded polycarbonate, which has been laser direct structured (LDS) to allow for localised metal plating

Astronaut Scott Parazynski during a spacewalk on STS-120. The ultra-thin gold coating on the visor provides protection from harmful solar radiation. Image NASA.
Relevant materials
Gold, Au, 24 ct, Pure gold

While silver is the most common finish for a brass instrument mouthpiece, gold provides a tarnish-free surface that will hold its shine for longer. Maintaining a super smooth finish means the mouthpiece feels less 'grippy' and so can help with lip flexibility and control.
Relevant materials
Gold, Au, 24 ct, Pure gold
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