Uruguay 1930 Centenary of Independence 3c Montevideo Printer's sample in chocolate (issued stamp was yellow-green) overprinted Waterlow & Sons SPECIMEN with security punch hole without gum, as SG 642
Uruguay 1930 Centenary of Independence 3c Montevideo Printer's sample in chocolate (issued stamp was yellow-green) overprinted Waterlow & Sons SPECIMEN with security punch hole without gum, as SG 642