No, you are not seeing double! Although I admit I thought I was! This is one of the strangest coincidences I have had since joining Postcrossing. The first card was sent to me by Aaron. The next day, my address went to Herbstzeitlose and she sent me the second card. What are the odds of that! They both show the Lake Constance area in Germany. They arrived a week apart and at first I couldn't figure out how my card ended up back outside. When side by side you can see they are different, they are even printed by different companies.