Get the best deals on U.S. Mint Certified US Coins when you shop the largest online selection at 4insure.us Free shipping on many items. Ordering Online or over the Phone. The easiest way to buy from the U.S. Mint is via their Web site, 4insure.us You can also buy through the toll-. Buy U.S. Mint Silver coins from APMEX – authorized purchaser with the U.S. Mint. Free shipping on orders over $ Shop now - 4insure.us However, if you enjoy collecting modern United States coins, purchasing them directly from the United States mint is the best way to us mint coin sales it. Us mint coin sales, during the high volume and limited production coin rushes, people trying to place their orders using the telephone usually find themselves empty-handed. Other people will try to use the telephone to place the order. People will "hover" on the website until the exact moment when the sales start. The U. This way, you do not have to "hover" on the Mint's website or remember to call in your order via the telephone.