I have owned several "real-deal" plastic milk crates, with the name/logo of the company moulded in, I found them on the side of the road,.   But I have never seen one with a stainless steel rim.  Interesting.  Some are marked in such a way that possession by other than the milk company itself is supposed to be illegal, meaning that they don't sell them or give them away.  The only ones I have seen with a steel rim were all metal, no plastic at all...
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OBG