This may be a China knockoff taillamp. The people from China are good at clone design to a point. I would call RockAuto and ask them if they would pull another from the box and send you a photo. It may be a mis-boxed part. If not ask them if it is for sure a factory MB part. Did the lamp come in an MB box? Someone else said that Rock Auto sold Clone China parts, and that is ok if they state they are aftermarket, and you don't mind using them. I would want factory lamps with dot lenses.
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