Guernsey
probably. All postboxes are blue, coz Guernsey Post went independant from Royal Mail in 1969 and wanted to be different.
I live there, and also work for Guernsey Post.
not that anyone reeeaally cares about all that - just thought I'd help.
(
Sandman-uk,
Sun 7 Sep 2003, 23:36,
archived)