As an inheritance, you owe no tax on the inheritance itself.
However, on the sale of your inheritance (silver), you may incur a capital gain.
The silver should be valued at its Fair Market Value as of the decedent's date of death. (or other appraised value as of the date of death).
If you sold the silver for more than its FMV as of the date of death, then there will be a capital gain. You would have to pay taxes on the capital gain.
Capital gains = sale price - Adjusted cost basis.
the adjusted cost basis for this would be the FMV as of the date of death + cost of brokerage fees + cost of selling.