According to the GeorgetownDC website’s murals and public arts section:

“Bryan King’s 1992 mural on the side of America Eats Tavern (Old Glory, at the time) is another trompe-l’œil offering a look at life on the Georgetown waterfront at the turn of the 20th century. According to dcmurals.org, the artist researched Georgetown’s early topography at Georgetown Library before he began working on his piece …”

Best to view in "Original" because other versions resized by PBase are decidedly unsharp.

Contemplating a dip, posted earlier: