Both old US 40% and 90% silver coins are still legal tender today but they are most actively traded based on their overall silver content and not their legal tender face values. Many silver savers like owning these old US silver coins for potential use in direct barter or trade. For example small old US 90% silver dimes contain about 2.25 grams of silver in each coin. In a financial crisis, many contend these small denomination silver coins could come in handy when purchasing everyday goods and services.
Yet the largest most important reasons people buy and hold old US Constitutional Silver Coins for the long term is the fact their precious silver content has proven to be a good hedge against ongoing fiat currency debasement and purchasing power loss. In short, silver retains its value over the long term allowing holders to keep a portion of their wealth in these private, tangible, legal tender, precious metal silver coins of our forefathers.