90% silver coins are very popular among serious silver investors. The 90% silver coinage, sometimes referred to as junk silver as the coins are the pre-1965 US dimes, quarters and halves. The US Mint stopped using 90% silver in its dimes, quarters, and half dollars in 1965, meaning 1964 was the last year any of these silver coins were made of 90% silver.
Historically, 90% silver coins have been one of the cheapest ways to invest in silver. Hard core silver bugs believe that in a catastrophic breakdown in society brought about by reckless money printing and excessive debt, that American 90% silver coins might provide much needed relief as 'real money' to buy basic food and services during that crisis period. 90% junk silver is a great way to hold silver and especially given that these coins are no longer produced may add some additional benefit of becoming more valuable in the future as collectible items in addition to the silver content. These pre-1965 silver coins are NOT IRA eligible.