You can buy #preciousmetals at gun shows, gold redemption centers, pawn shops, coin shops... precious metal prices can be found online https://www.kitco.com/
Junk silver, coins (dollars, 1/2 dollars, quarters and dimes) in the US were 90% silver 1964 and before... Some other countries like Canada it was 80% silver. You can also buy small amounts online in increments. Learn... it will come in handy https://en.wikipedia.org/wiki/Junk_silver and if you don't use it... leave it to your children/grandchildren.