1919 Registered Roessler Cover to USA, #K2, K6-8 tied by fair strikes of "U.S. Postal Agency/ Shanghai, China/ R.D." double oval cancels, backstamped Chicago Aug 4 and East Orange NJ Aug 6, return address clipped and cover bit postal/ edge wear incl light vert central fold, K6 corner crease, still Fine (Scott $650 as used singles) (Image)