Operated from 1995 to 1997, possibly later, issuing stamps.
Updated 18th July 2003
Operated from 1996 to 1999, issuing stamps.
Updated 29th September 2003
Operated from 1990 onwards, issuing stamps.
Updated 9th March 2007
Operated from 2000 onwards, issuing stamps.
Updated 7th January 2009
Operated from 2006, using a cancellation only.
Updated 15th August 2007
Operated from 1990 to 1999, issuing stamps.
Updated 7th January 2009
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