Imperial Bank of Persia, specimen 50 tomans, Teheran, ND (1924), red serial numbers F/A 000000, brown, pale orange, blue, pink and green, Shah Nasr-ed-Din in oval frame right centre, no signatures below, value in field, reverse brown and green, Imperial arms at centre, value at centre and at left and right, red serial number at each corner(Pick 16s), perforated CANCELLED, manuscript approved in field at right on reverse, in PCGS holder 58, choice about uncirculated and very rare, a lovely note