World Banknotes

Bank Negara Malaysia, a pair of initial engravers workings on transparent acetate showing the outlines of plate designs for the obverse 10 and 20 Ringgit, 1983 issue, each of these is unique and they are remarkable survivors, as most were simply treated as printers waste (2 items)
BNB B121a, B122a, Pick 21, 22 £200-£300