Irish Belleek Porcelain Neptune Cup&Saucer Black Mark

The Neptune Dem-Tasse cup and saucer has the Second black mark on the bottom of both pieces. Both pieces are in excellent condition, no chips, no cracks, no hairlines and no repairs. I have 1 set to sell. $175.00 ea. Call me. Home 414-546-2040, Cell 414-698-4243. Zip code required for shipping charges.