Silver is, and has for a long time, held the distinction of being one of the most popular precious metals used as a store of value. First minted in 1988, silver maple leaf coins for sale feature the maple leaf, that famous symbol of canada, on the reverse. This ensures the investor will have a continuous fluid market to buy and sell united states mint products with ease. The proof coins also come with a higher price tag. Investing in world silver coins can provide you with a handsome profit while adding interest including world history and diverse geography to your coin collection.