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The short answer is yes and no.
Yes to the smaller denominations of silver (like the 1/10th coins).
Gold and silver are ALWAYS good investments, but in the short term, if the total economy does a belly flop, you're much better off with junk silver or the smaller amounts, which can be used a lot easier for trading while there are still a few things left on the store shelves. LIKE FOOD.
As investment portfolio purchases, however, gold and silver can't be beat at higher denominations and quantities.
Buy through Money Metals Exchange, PO Box 2599, Eagle, ID 83616, or phone 800-800-1865. Also you can use their website, www.moneymetals.com, or fax 866-861-5174
Next up on my purchase list is junk silver - - LOTS of it!