Nicaragua 1954 United Nations Organisation 3c Air perf printer's sample in unissued colour (brown instead of magenta) with security punch hole and overprinted Waterlow & Sons Limited, Specimen, unmounted mint as SG 1202
Nicaragua 1954 United Nations Organisation 3c Air perf printer's sample in unissued colour (brown instead of magenta) with security punch hole and overprinted Waterlow & Sons Limited, Specimen, unmounted mint as SG 1202