1 Rupee - Birendra Bir Bikram

Pick 37 spans a six-year range across two printers — BA International in Canada and Oberthur in France — which means the series exists in two distinct print varieties. The Canadian firm had been contracting for the Nepal Rastra Bank since at least the 1970s; the addition of Oberthur reflects a broader trend among South Asian central banks during the 1990s of diversifying their security printing suppliers. Collectors should note that the two printings are distinguishable by subtle paper and ink differences, though neither carries an explicit printer's imprint on the face.