I'm new here, so I hope I'm in the right spot. I have a LV Bifold wallet that doesn't have a date code...there is however a heat embossed "swiss made" underneath the credit card slot. Has anyone ever seen this on an authentic vintage LV? It does also have the Louis Vuitton Paris heat embossed in the bottom right hand corner when the wallet is opened. Please...anyone ever seen this type of marking?