Antique Real Photo Postcard, circa 1920s. Depicting the Washington Monument in Washington, D.C. Photo by M.F. Abbott. Divided back, AZO stampbox, unused. Condition: This is an original photo postcard, not a copy or reproduction. It is in very good condition. Comments: The Washington Monument is an obelisk on the National Mall in Washington, D.C., built to commemorate George Washington, once commander-in-chief of the Continental Army in the American Revolutionary War and the first President of the United States.