Ray-BanMen's 0RB3183 Polarized Rectangular Metal Sunglasses (pack of 1)

Is this a knock off? why does the description say made in us then it says made in italy or china?

Are these glass (Crystal Green Lenses) or plastic?

was it make in Italy?

Are the Gunmetal Frame/Gray Polarized GSM Lens the same as Model 004/82 63-15?