coffeejoe , 3 months ago NFC sticker would have a coil of wire as the antenna around a little bump in the middle which is the chip. https://www.google.com/search?tbm=isch&q=nfc+sticker
NFC sticker would have a coil of wire as the antenna around a little bump in the middle which is the chip. https://www.google.com/search?tbm=isch&q=nfc+sticker