The 1913-D, like the 1915-D, is a scarce semi-key that's somewhat underrated. It is about as rare as the 1911-D and 1912-D though it brings less in most grades. Full Red Gems are rare and Superb Gems are very rare. The 1913-D is usually decently struck. Red and Brown mint state examples are often encountered with various shades of lightish red and brown color. Full Red examples are usually a subdued reddish color. The 1913-D is actually very slightly rarer than the 1915-D in Gem Full Red condition.