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About First Day CoversThese envelopes may be privately or officially produced for new stamp issues. Normally for philatelic purpose, they will be affixed with one or more stamps of the new stamp issue and postmarked with the date of issue, which is when the stamps are first placed on sale to the public. My First Day Covers' CollectionSingapore First Day Covers issued in 1979 Singapore First Day Covers issued in 1981 Singapore First Day Covers issued in 1982 Singapore First Day Covers issued in 1986 Singapore First Day Covers issued in 1987 Singapore First Day Covers issued in 1990 Singapore First Day Covers issued in 1991 |