Jeff Garrett:This date is very popular as the third lowest mintage Double Eagle after the 1907 High Relief and the 1908–S. Other dates are much rarer as quite a few of this issue’s low mintage survived. For some reason, a significant number were saved; these probably sat out the first half of the century in European or South American bank vaults. The 1913–S is a classic condition rarity. Only one MS 66 coin is known for the date. It was at one time part of the famous “Dallas Bank” collection.