50c green & brown 'Independence Centenary' issue WATERLOW COLOUR TRIAL in unissued colours, perforated on ungummed paper with hole punch & 'Waterlow & Sons Ltd SPECIMEN' overprint in black. (As SG 481)
50c green & brown 'Independence Centenary' issue WATERLOW COLOUR TRIAL in unissued colours, perforated on ungummed paper with hole punch & 'Waterlow & Sons Ltd SPECIMEN' overprint in black. (As SG 481)