I agree with the above, in that I too have a set of Mk IVb goggles, in the box, with all the spares, rivets, guide plates, etc. The rubber pads on the back are perfect (I had another pair from the same source which had perfect pads on the back, about the only two pairs ive ever seen as such), and the flip screen is attached to the frame, but still with its brown paper covering. Definately unissued but as above, still not quite as minty looking as those on trident sales site. I think the refirb, if thats what it is, was perhaps a little too good?
On another tack, goggles can be found pretty cheap. A good set of Mk III goggles, with history, for under £90.00!! http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=170240364978&ssPageName=STRK:MEWA:IT&ih=007