Hi--I'm new here as I recently started working for Millersport in Hillsborough, NC, and I'm sorting through about 30 years worth of used parts to get them organized for better access and sale (many have tried and quit before me apparently). Anyway, I came across these euro headlight lenses that have the factory "Turbo" logo etched or sandblasted into the upper face. As far as we know this was not a Porsche option or accessory and was either aftermarket or done by the owner. Has anyone ever seen something similar? Any information would be appreciated. Thanks.