This is a 16 oz ceramic Washington D.C. mug produced by Starbucks in 2002. It is part of the Skyline Series One collection. Inside the mug is "THE NATIONS CAPITAL." 

There is a tiny manufacturing defect in the bottom of the mug (it looks like a couple of tiny brown specks, but when you feel it, you can tell that it has been glazed over-- in picture you can see if against the back wall of the mug). Otherwise, the mug is in nice shape with minor wear - there are no chips, cracks, or other damages. May need minor touch-up cleaning. Nice overall.

See pictures for more details.

If you have any questions, please let me know. Thanks for looking!