That's a good question. I don't know the exact wording of the law, but I suspect the answer would be "No, not acceptable."

I'm still not quite sure of the actual legalities surrounding selling as "Collector's item, not for use." If that is permissible by law, then a trader need only apply that description to everthing he sells.

From stories I've heard, the problem is that different trading standards officers around the country seem to apply their own interpretations.

What has been deemed acceptable for new appliances, however, is the use of permanently affixed adpaters to convert a two-pin Euro-plug to a BS1363 plug.