MALTA12cUN resolution on the seabed · twentieth anniversary · 12cImage unavailable
1987UN resolution on the seabed · twentieth anniversary
UN resolution on the seabed · twentieth anniversary · 12c
12c
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1987 / Maritime history
UN resolution on the seabed · twentieth anniversary
UN resolution on the seabed · twentieth anniversary, issued as 2 basic design/value types.
First day and denomination are supported by the contemporary report. A precise design-to-value caption and independent specimen cross-check remain open.
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Original basic design/value types; documented major paper, watermark and perforation alternatives are separately identified. Unchanged reprints, errors and plate/pane positions are excluded.
UN resolution on the seabed · twentieth anniversary