certificate of authenticity

  1. SquidMan

    Need help and advice identifying Mad Men business cards—was I scammed?

    I just received a batch of what was sold to me as production-used Sterling Cooper business cards from Mad Men, with a Screenbid COA, from eBay. However, all other Mad Men business cards currently on eBay, all sold with their own COAs, look different from the ones I received: those look like...