That's the classic German NUK Tropic pacifier. If you google for "NUK tropic schnuller" you'll find some small ads from Germany. There is also the NUK Maxi Trainer in size 4 with the same style. I don't think there is a way to buy either of these new; only from collectors. I've got a few in size...
I totally agree with every point. It's a near-perfect pacifier, but the shield is slightly misaligned and not curved enough. It doesn't even touch my face. @RearzJacob, do you think you might be able to have the shield modified in future runs?
It's great that you managed to import some size 7s. Would you be willing to sell a couple of them? I'm curious about them and would happily buy some off you, if you want. I'm in the UK, too :).
ebay Germany may be your best bet. This one here appears to ship to the USA for only EUR 6: http://www.ebay.de/itm/158-Nip-Schnullerbox-0m-neu-OVP-/261884778936?pt=LH_DefaultDomain_77&hash=item3cf98c99b8
Worth browsing german Google for shops that may also ship abroad?
I highly recommend the NIP pacifier boxes. They fit a NUK5 perfectly.
http://www.mumzworld.com/en/nip-soother-case-blue
http://www.amazon.de/gp/product/B00I8NW202?*Version*=1&*entries*=0
Not sure if they are easily available in the USA, though...