After Ted decides not to sell his John Quincy Adams letter to Rick, they shake hands. But this brief scene has a has a reversed shot, where the video image is reversed right-to-left. This is noticeable because the handshake between Ted and Rick appears to be made with their left hands. And when Ted leaves the counter with his letter, the John Quincy Adams signature is reversed and appears on the lower left hand side, rather than on the lower right hand side as it is in all other video scenes.