What is the value of a silver wheat penny?
If it's a 1943 cent, then it's not actually silver, but
zinc-plated steel. Mint-state specimens are usually worth a dollar
or two on the collector's market. If it's any other date, chances
are it is a standard cent plated with silver, nickel, or even
mercury. This was a popular passtime for kids for several years.
Such plating, though, destroys most of any collector's value it may
have. A mercury coating can be especially nasty, as the mercury
bonds very tightly to copper, but still could cause mercury
poisoning if swallowed or handled frequently.