I find this one very interesting to me. As I have a very old bout rustique from Germany. The old guy I got it from had if for many years and he thought it was from at least the 1920's based on where he got it. I have always been curious because I never see any other layers with that silver tint to it. This is very close to mine. Only yours seems to have a little more of the BBW look to it. Not sure where the French baker gets his stuff, but some does seem vintage and old so this maybe an older layer. I think he also collected for many years.
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Yeah the silver look comes probably from the existence of a specific amount of BBW....the purple/red thins out and the yellowish turns more into a grey or blueish grey