Imperial Bank of Persia, uniface obverse and reverse colour trials/proofs for 5 tomans, Teheran, ND (ca 1900-), black, lilac, pale blue, pink and green, Shah Nasr-ed-Din at right, Imperial arms at left, value at centre and at each corner, two printed signatures below, reverse blue and pale orange, Imperial arms at centre, value at centre and at each corner(Pick 3p), in PCGS holders 63, choice uncirculated and 58, choice about uncirculated, attractive and very rare (2)
