Could I ask where you're sourcing these from? I've been thinking about dials of some sort for Shock markers in Through the Mud & the Blood (and other general uses) but wouldn't need artwork on 'em. The price you've found is one heck of a lot more affordable than Litko and some of the other options I've seen.
Plus I'm on the North American side of "the pond" and it seems to make more sense to order from this side of it!
(not trying to cut Mick out of the loop or anything, just can't see the point in wasting rather nice VBCW graphics when I'll either cover the dials in scenery material or put my own logos over them anyway!)