[Source] Platinum or Rhodium plated sterling silver

Hello, I am looking for a wholesale supplier that deals in
Platinum or Rhodium plated over Sterling Silver chains,
findings, and mountings. Does anyone know of a source or have
any suggestions as to where I could find a dealer in this
material. Also, has anyone worked with Platinum or Rhodium
coated Sterling Silver, if so, any suggestions. Thank you in

Mark Cunha
Owner-Newmark Company