If I remember correctly there was a sticker on the outside of the box that mentioned VMK somehow. If that sticker isn't there then I don't think you can be sure.
Well the thing is, the way I could tell with the old ones with the sticker was that if you shook it and it rattled, then it had it. Because the VMK paper was smaller so it would rattle lightly in the box. I've shook ones without a sticker and it's made the same noise.
So... there's no guarantee, but if it rattles you might take the chance. hehe