Operated from 1988 to 1989, issuing stamps.
Updated 18th July 2003
Operated from 1990 onwards, using cancellations only.
Updated 6th December 2006
Operated from 1991 to 1999, issuing stamps.
Updated 10th August 2003
Operated in 2001, issuing stamps.
Updated 6th September 2003
Operated from 1983 to 1996, possibly later, using a cancellation only.
Updated 5th September 2005
Operated from 1993 to 1999, issuing stamps.
Updated 21st November 2003
Operated from 1982 to 1986, issuing stamps, and then 1987 to 1990, possibly later, using cancellations only.
Updated 30th July 2005
Operated in 1989, issuing stamps.
Updated 18th August 2005
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