Naval History and Heritage Command says: Washington Navy Yard, D.C. View looking eastward along the waterfront from atop the roof of the western shiphouse, June 1866. The 11th Street bridge and the Anacostia shore are in the distance. Ships in the stream at right include three monitors and a former Confederate torpedo boat of the large David type. Monitor to the left in that group is either Chimo or Casco. The other two are Mahopac (center of group) and Saugus (to right). The ex-CSS Stonewall is anchored in the river, in the center of the view. Half visible on the marine railway (at left) is a double-ender gunboat, probably USS Ascutney. Dismasted screw steamer alongside the waterfront in center may be USS Marblehead. Ship in right foreground, alongside the masting sheers, may be USS Resaca. The experimental firing battery is just beyond the shiphouse, in the left center foreground, flanked by what appears to be a ship’s smokestack on one side and a mortar and a shot pile on the other.
