(San Francisco) San Francisco Cal '10' Sep 24, integral due cds on cover bearing 10¢ green (68) tied by circular grid cancel to Dr. Wm. Commons, Asst. Surg. U.S. Navy, U.S.S. Suwanee, care of U.S. Consul Panama N.G., endorsed at left "Answered - San Francisco, Oct 7 1866"; reduced slightly at right, otherwise Very Fine and unusual forwarded use. Estimate  $150 - 200. $0 (Image)