1960(无日期1964)年蒲隆地皇家银行50法郎,编号J451691,加盖于卢旺达-布隆迪50法郎上,PMG 55,Lin Zhan Wei 旧藏,罕见版别。Burundi, Banque de Royaume, 50 francs, 1960 ND(1964), serial number J151691, overprint on Rwanda-Burundi #4,(Pick 4), PMG 55 About Uncirculated (Lin Zhan Wei Collection). A rare type