Banco de Angola, colour trial 5-Angolares, 1 January 1947, red-brown and yellow (P.77), also colour trial 10-Angolares, 1 June 1947, green and pink, Padre A Arroso at right (P.78), a pair of rare WATERLOW colour trials, official perforations and black SPECIMEN WATERLOW & SONS LTD overprint, uncirculated (2)