1999年新加坡伍拾圆,一组十枚连号,OBK000001-10,PMG 65EPQ-67EPQ;Singapore, a set of 10 x$50, ND(1999), serial number OBK000001-10, blue on multicolour underprint, portrait of Yusof bin Ishak at right, arms at top left, watermark below,(Pick 41a), all in PMG holders, with one 65EPQ, four 66EPQ and five 67EPQ.(10)