Banco Nacional Ultramarino, Macao, specimen 5 patacas, brown, 18 November 1976, 10 patacas, blue, 7 December 1977, 50 patacas, blue green, 1 September 1976, 500 patacas, green, 24 April 1979, all with zero serial numbers(Pick 54s, 50s, 56s, 52s) uncirculated and rare(4)