U2 Wire NME Test Press 7"

[U2Collector]

Hi - There is a test pressing version of the 7" single which was given away with the NME newspaper in the UK in 1985. This includes the dub mix of 'Wire' by U2 as well as a track by The Smiths, The Cocteau Twins and Bronski Beat. I have never seen this before and it looks to be rare. Does anyone know what this would be worth, before I commit myself to bidding on it?

I am not allowed to put in a link to an ebay auction, but it is listed as a Smiths test press (though it includes the U2 track as well). It can be found by typing "Smiths NME test press" into ebay.