2011 atb 5oz silver uncirculated olympic coa. The item "2011 atb 5oz silver uncirculated olympic coa" is in sale since Thursday, September 30, 2021. This item is in the category "Coins & Paper Money\Bullion\Silver\Coins". The seller is "amhu-8375" and is located in Oakridge, Oregon. This item can be shipped to United States.