1977
International Thematic Stamp Exhibition “Portucale 77” – Porto, Portugal – Gemstones


[International Thematic Stamp Exhibition "Portucale 77" - Porto, Portugal - Gemstones, type BIK]


[International Thematic Stamp Exhibition "Portucale 77" - Porto, Portugal - Gemstones, type BIL]


[International Thematic Stamp Exhibition "Portucale 77" - Porto, Portugal - Gemstones, type BIM]

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