Can I assume the sticker is plastic, not paper?
These are much more recent than the original "knot" sculptures, but the ones I have seen seem to have the same or very similar textures to the early textured bottles - I assume they are reusing the old moulds. But I can't see from your pics what the texture actually is - not well enough to match it up to anything.
I don't know whether the grey stone inclusions are an accident or deliberate, but you could try writing to the factory to ask? I think they'd be able to tell you more than I can.