USA Franklin Silver Half Dollars can be a fun and easy way to stack Silver. With about 90% Silver content, one can contain up to 0.361 Troy ounce of Silver. A true fractional of over 1/3 Troy Ounce Silver.
I really like naturally toned Silver Coin Coins, especially teal toned rainbows. This 1953 (Philadelphia) was also a lower mintage of the Benjamin Franklin Series. But, even the key dates are really not that hard to find. So if one was working on a circulated set, all coins of the series would be close to the same price, each. High-end Brilliant Uncirculated examples are a different story. They can be high-priced, valuable, and hard to find.
Beautifully naturally toned coins can be found in a Local Coin Shop's junk box, but I would estimate, it's about a one in a thousand chance to find a nice one. Or maybe one in this one inch deep junk box of Silver dimes.
Gold coins don't tone as good as Silver. Thanks for looking. And keep on stacking. #silvergoldstackers has some good coin related articles.
From @cve3