Iran, Bank Melli, a group of colour trials of the ND (1948) series comprising 10-Rials, green, 20-Rials, violet, 50-Rials, brown, 100-Rials, brown, 200-Rials, blue, all with Shah Pahlevi at right (P.47-51), also a set of colour trials of the 1954 series comprising 10-Rials, green, 20-Rials, green, 50-Rials, blue, 100-Rials, brown, all with Shah Pahlevi at right (P.64-67), perforated, SPECIMEN overprint, uncirculated, rare