Imperial Bank of Persia, archival specimen 500 tomans, Teheran, ND (1919), serial number K/A 01001-K/A 01400, black, pink and green, Shah Nasr-ed-Din at right, Imperial arms at left, value at centre and at each corner, additional Farsi text in left field, reverse green, Imperial arms at centre, black overprint PAYABLE AT TEHERAN ONLY top centre, value at centre and at each corner, black serial number at low left, top right and at centre(Pick 9s), ink date 23.4.19 in top margin, perforated CANCELLED, in PCGS holder 58 PPQ, choice about uncirculated and a beautiful and extremely rare and iconic banknote