Pakistan Post issued 6 Post Marks on ECOPHILEX 86, Islamabad
December 20-24, 1986 - "ECOPHILEX 86"
December 20, 1986 - "Inaugural Day"
December 21, 1986 - "ECO Day"
December 22, 1986 - "Youth Day"
December 23, 1986 - "Stamp Trade Day"
December 24, 1986 - "Awards Day"
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