Operated from 1992 to 2001, issuing stamps.
Updated 28th November 2004
Operated from 1994, issuing stamps.
Updated 27th November 2007
Operated from 1984 to 1985, issuing stamps.
Updated 3rd January 2006
Operated from 1997 onwards, issuing stamps.
Updated 7th March 2007
Operated from 1985 to 1996, issuing stamps, then renamed Swindon.
Updated 3rd January 2006
Operated from 1983 to 1984, issuing stamps, then renamed Thamesdown.
Updated 27th August 2005
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