Keywords: Barack Obama plays with a Petoskey stone.jpg Petoskey stone as he talks on the telephone in the Oval Office on 6 December 2012 2012-12-06 16 01 10 http //www flickr com/photos/whitehouse/8389725451 White House P120612PS-0547 Pete Souza PD-USGov DEFAULTSORT 20121206160110 Barack Obama in 2012 Photographs by Pete Souza Taken with Canon EOS 5D Mark III Uploaded by O'Dea Uploaded with UploadWizard Barack Obama on telephone calls Hands of Barack Obama Hexagonaria fossils Geology of Michigan Barack Obama in the Oval Office Resolute desk |