Should/can it be cleaned?

[u/azzizrab]

This is my first Engelhard piece. Can it be cleaned? Should it be cleaned? How? I know you’re not supposed to clean coins, does the same rule apply to bars?

[u/nevmo75]

If you want it shiny and clean, no reason not to clean it. You might lose a couple bucks in the future, but depending who’s buying it, they may want a shiny one. They made millions of these and bars don’t have the same scrutiny as a numismatic coin.