Frankly, I have no idea what is going on with the date. The 'CEN' and 'S' could be machine doubled - the doubling looks shelf like to me. However, the stars definitely appear to be from a doubled die - both sides of the doubling seem equal height. Oh, and the two 'S's look almost intertwined - it's a cool effect. Any thoughts on this coin? I thought I'd provide an international twist to today's error question.