In my experience, all gold-plate-looking framesets are actually gold lacquer over chrome ( Rampar Superbe, Raleigh Anniversary, Wilier Triestina, ... )
You could find a very inconspicuous place - maybe between the chainstays, near the tire - and then rub some lacquer thinner over it to remove the lacquer, exposing the chrome.
- Don Gillies
San Diego, CA, USA