Stamp catalog : Watermarks List [Theme: Energy Conservation | Gum: Unknown] : Colnect 📮

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Stamp catalog › Watermarks List (Theme: Energy Conservation, Gum: Unknown)

Chinese Character 'YU' Large Multiple [Up] (2)Coat of Arms Ecuador Military Geographic Institute [Up] (2)Crown over Block CA Diagonal Multiple [SL] (1)No Watermark (57)Wavy Lines Interlinked [Up] (1)Unknown (182)