Bank of Afghanistan, specimen 20 afghnanis, SH 1318 (1939), red zero serial numbers, dark violet-brown and multicoloured, King Muhammad Zahir at left, arms top centre, three printed signatures below, reverse purple and pale green, river valley, value at right (Pick 24s, TBB B304s), mounting traces at left border, perforated, two diagonal red SPECIMEN overprint, uncirculated and a rare denomination for series
