Baden, 1862, 18kr green. Tied by five ring concentric "57" numeral cancel of Heidelberg on small 1864 cover to London; cover and stamp restored with part of cancellation painted over, Very Fine appearance; with M. Brettl & F. Stegmüller attest. Michel No. 21a €8,000 ($10,960). Scott No. 24  Estimate $200 - 300. $0 (Image)