I can’t really even orient myself to where this is today as the place has changed so much. This is around the same area today, which is completely unrecognizable. Built in 1965, the Rayburn House Office Building blocks the view of the Capitol Dome.
Okay, so after a little more digging, we figure it’s somewhere near this pin on Google Maps.
And, this is what the area looked like in the 1927 map. Check out square 638.